diff --git a/src/libs/ReportActionsUtils.js b/src/libs/ReportActionsUtils.js
index 9b20ee0168aa..cda1f39d3087 100644
--- a/src/libs/ReportActionsUtils.js
+++ b/src/libs/ReportActionsUtils.js
@@ -1,9 +1,9 @@
+/* eslint-disable rulesdir/prefer-underscore-method */
 import lodashGet from 'lodash/get';
 import _ from 'underscore';
-import lodashMerge from 'lodash/merge';
+import {max, parseISO, isEqual} from 'date-fns';
 import lodashFindLast from 'lodash/findLast';
 import Onyx from 'react-native-onyx';
-import moment from 'moment';
 import * as CollectionUtils from './CollectionUtils';
 import CONST from '../CONST';
 import ONYXKEYS from '../ONYXKEYS';
@@ -332,11 +332,7 @@ function shouldReportActionBeVisible(reportAction, key) {
     }
 
     // Filter out any unsupported reportAction types
-    if (
-        !_.has(CONST.REPORT.ACTIONS.TYPE, reportAction.actionName) &&
-        !_.contains(_.values(CONST.REPORT.ACTIONS.TYPE.POLICYCHANGELOG), reportAction.actionName) &&
-        !_.contains(_.values(CONST.REPORT.ACTIONS.TYPE.TASK), reportAction.actionName)
-    ) {
+    if (!Object.values(CONST.REPORT.ACTIONS.TYPE).includes(reportAction.actionName) && !Object.values(CONST.REPORT.ACTIONS.TYPE.POLICYCHANGELOG).includes(reportAction.actionName)) {
         return false;
     }
 
@@ -351,7 +347,7 @@ function shouldReportActionBeVisible(reportAction, key) {
 
     // All other actions are displayed except thread parents, deleted, or non-pending actions
     const isDeleted = isDeletedAction(reportAction);
-    const isPending = !_.isEmpty(reportAction.pendingAction);
+    const isPending = !!reportAction.pendingAction;
     return !isDeleted || isPending || isDeletedParentAction(reportAction);
 }
 
@@ -383,14 +379,24 @@ function shouldReportActionBeVisibleAsLastAction(reportAction) {
  * @return {Object}
  */
 function getLastVisibleAction(reportID, actionsToMerge = {}) {
-    const actions = _.toArray(lodashMerge({}, allReportActions[reportID], actionsToMerge));
-    const visibleActions = _.filter(actions, (action) => shouldReportActionBeVisibleAsLastAction(action));
+    const updatedActionsToMerge = {};
+    if (actionsToMerge && Object.keys(actionsToMerge).length !== 0) {
+        Object.keys(actionsToMerge).forEach(
+            (actionToMergeID) => (updatedActionsToMerge[actionToMergeID] = {...allReportActions[reportID][actionToMergeID], ...actionsToMerge[actionToMergeID]}),
+        );
+    }
+    const actions = Object.values({
+        ...allReportActions[reportID],
+        ...updatedActionsToMerge,
+    });
+    const visibleActions = actions.filter((action) => shouldReportActionBeVisibleAsLastAction(action));
 
-    if (_.isEmpty(visibleActions)) {
+    if (visibleActions.length === 0) {
         return {};
     }
-
-    return _.max(visibleActions, (action) => moment.utc(action.created).valueOf());
+    const maxDate = max(visibleActions.map((action) => parseISO(action.created)));
+    const maxAction = visibleActions.find((action) => isEqual(parseISO(action.created), maxDate));
+    return maxAction;
 }
 
 /**
diff --git a/src/libs/ReportUtils.js b/src/libs/ReportUtils.js
index 17dd97277150..8e9cea908f74 100644
--- a/src/libs/ReportUtils.js
+++ b/src/libs/ReportUtils.js
@@ -1,3 +1,4 @@
+/* eslint-disable rulesdir/prefer-underscore-method */
 import _ from 'underscore';
 import {format, parseISO} from 'date-fns';
 import Str from 'expensify-common/lib/str';
@@ -86,8 +87,8 @@ function getChatType(report) {
  * @returns {Object}
  */
 function getPolicy(policyID) {
-    const policy = lodashGet(allPolicies, `${ONYXKEYS.COLLECTION.POLICY}${policyID}`) || {};
-    return policy;
+    if (!allPolicies || !policyID) return {};
+    return allPolicies[`${ONYXKEYS.COLLECTION.POLICY}${policyID}`] || {};
 }
 
 /**
@@ -153,7 +154,7 @@ function getReportParticipantsTitle(accountIDs) {
  * @returns {Boolean}
  */
 function isChatReport(report) {
-    return lodashGet(report, 'type') === CONST.REPORT.TYPE.CHAT;
+    return report && report.type === CONST.REPORT.TYPE.CHAT;
 }
 
 /**
@@ -163,7 +164,7 @@ function isChatReport(report) {
  * @returns {Boolean}
  */
 function isExpenseReport(report) {
-    return lodashGet(report, 'type') === CONST.REPORT.TYPE.EXPENSE;
+    return report && report.type === CONST.REPORT.TYPE.EXPENSE;
 }
 
 /**
@@ -173,7 +174,7 @@ function isExpenseReport(report) {
  * @returns {Boolean}
  */
 function isIOUReport(report) {
-    return lodashGet(report, 'type') === CONST.REPORT.TYPE.IOU;
+    return report && report.type === CONST.REPORT.TYPE.IOU;
 }
 
 /**
@@ -183,7 +184,7 @@ function isIOUReport(report) {
  * @returns {Boolean}
  */
 function isTaskReport(report) {
-    return lodashGet(report, 'type') === CONST.REPORT.TYPE.TASK;
+    return report && report.type === CONST.REPORT.TYPE.TASK;
 }
 
 /**
@@ -237,7 +238,7 @@ function isCompletedTaskReport(report) {
  * @returns {Boolean}
  */
 function isReportManager(report) {
-    return lodashGet(report, 'managerID') === currentUserAccountID;
+    return report && report.managerID === currentUserAccountID;
 }
 
 /**
@@ -247,7 +248,7 @@ function isReportManager(report) {
  * @returns {Boolean}
  */
 function isReportApproved(report) {
-    return lodashGet(report, 'stateNum') === CONST.REPORT.STATE_NUM.SUBMITTED && lodashGet(report, 'statusNum') === CONST.REPORT.STATUS.APPROVED;
+    return report && report.statusNum === CONST.REPORT.STATE_NUM.SUBMITTED && report.statusNum === CONST.REPORT.STATUS.APPROVED;
 }
 
 /**
@@ -271,9 +272,9 @@ function sortReportsByLastRead(reports) {
  * @returns {Boolean}
  */
 function isSettled(reportID) {
-    const report = lodashGet(allReports, `${ONYXKEYS.COLLECTION.REPORT}${reportID}`, {});
-
-    if (_.isEmpty(report) || report.isWaitingOnBankAccount) {
+    if (!allReports) return false;
+    const report = allReports[`${ONYXKEYS.COLLECTION.REPORT}${reportID}`] || {};
+    if ((typeof report === 'object' && Object.keys(report).length === 0) || report.isWaitingOnBankAccount) {
         return false;
     }
 
@@ -287,7 +288,10 @@ function isSettled(reportID) {
  * @returns {Boolean}
  */
 function isCurrentUserSubmitter(reportID) {
-    const report = lodashGet(allReports, `${ONYXKEYS.COLLECTION.REPORT}${reportID}`, {});
+    if (!allReports) {
+        return false;
+    }
+    const report = allReports[`${ONYXKEYS.COLLECTION.REPORT}${reportID}`] || {};
     return report && report.ownerEmail === currentUserEmail;
 }
 
@@ -394,8 +398,7 @@ function isChatRoom(report) {
  * @returns {Boolean}
  */
 function isPublicRoom(report) {
-    const visibility = lodashGet(report, 'visibility', '');
-    return visibility === CONST.REPORT.VISIBILITY.PUBLIC || visibility === CONST.REPORT.VISIBILITY.PUBLIC_ANNOUNCE;
+    return report && (report.visibility === CONST.REPORT.VISIBILITY.PUBLIC || report.visibility === CONST.REPORT.VISIBILITY.PUBLIC_ANNOUNCE);
 }
 
 /**
@@ -405,8 +408,7 @@ function isPublicRoom(report) {
  * @returns {Boolean}
  */
 function isPublicAnnounceRoom(report) {
-    const visibility = lodashGet(report, 'visibility', '');
-    return visibility === CONST.REPORT.VISIBILITY.PUBLIC_ANNOUNCE;
+    return report && report.visibility === CONST.REPORT.VISIBILITY.PUBLIC_ANNOUNCE;
 }
 
 /**
@@ -576,7 +578,7 @@ function findLastAccessedReport(reports, ignoreDomainRooms, policies, isFirstTim
  * @returns {Boolean}
  */
 function isArchivedRoom(report) {
-    return lodashGet(report, ['statusNum']) === CONST.REPORT.STATUS.CLOSED && lodashGet(report, ['stateNum']) === CONST.REPORT.STATE_NUM.SUBMITTED;
+    return report && report.statusNum === CONST.REPORT.STATUS.CLOSED && report.stateNum === CONST.REPORT.STATE_NUM.SUBMITTED;
 }
 
 /**
@@ -744,7 +746,7 @@ function isMoneyRequest(reportOrID) {
  * @returns {Boolean}
  */
 function isMoneyRequestReport(reportOrID) {
-    const report = _.isObject(reportOrID) ? reportOrID : allReports[`${ONYXKEYS.COLLECTION.REPORT}${reportOrID}`];
+    const report = typeof reportOrID === 'object' ? reportOrID : allReports[`${ONYXKEYS.COLLECTION.REPORT}${reportOrID}`];
     return isIOUReport(report) || isExpenseReport(report);
 }
 
@@ -2836,7 +2838,13 @@ function shouldReportBeInOptionList(report, currentReportId, isInGSDMode, betas,
         !report ||
         !report.reportID ||
         report.isHidden ||
-        (_.isEmpty(report.participantAccountIDs) && !isChatThread(report) && !isPublicRoom(report) && !isArchivedRoom(report) && !isMoneyRequestReport(report) && !isTaskReport(report))
+        (report.participantAccountIDs &&
+            report.participantAccountIDs.length === 0 &&
+            !isChatThread(report) &&
+            !isPublicRoom(report) &&
+            !isArchivedRoom(report) &&
+            !isMoneyRequestReport(report) &&
+            !isTaskReport(report))
     ) {
         return false;
     }
@@ -2856,7 +2864,6 @@ function shouldReportBeInOptionList(report, currentReportId, isInGSDMode, betas,
     if (report.hasDraft || isWaitingForIOUActionFromCurrentUser(report) || isWaitingForTaskCompleteFromAssignee(report)) {
         return true;
     }
-
     const lastVisibleMessage = ReportActionsUtils.getLastVisibleMessage(report.reportID);
     const isEmptyChat = !report.lastMessageText && !report.lastMessageTranslationKey && !lastVisibleMessage.lastMessageText && !lastVisibleMessage.lastMessageTranslationKey;
     const canHideReport = shouldHideReport(report, currentReportId);
@@ -2873,7 +2880,7 @@ function shouldReportBeInOptionList(report, currentReportId, isInGSDMode, betas,
 
     // Include reports that have errors from trying to add a workspace
     // If we excluded it, then the red-brock-road pattern wouldn't work for the user to resolve the error
-    if (report.errorFields && !_.isEmpty(report.errorFields.addWorkspaceRoom)) {
+    if (report.errorFields && report.errorFields.addWorkspaceRoom) {
         return true;
     }
 
diff --git a/src/libs/SidebarUtils.js b/src/libs/SidebarUtils.js
index a3e57a9dc252..f645697690e6 100644
--- a/src/libs/SidebarUtils.js
+++ b/src/libs/SidebarUtils.js
@@ -1,7 +1,7 @@
+/* eslint-disable rulesdir/prefer-underscore-method */
 import Onyx from 'react-native-onyx';
 import _ from 'underscore';
 import lodashGet from 'lodash/get';
-import lodashOrderBy from 'lodash/orderBy';
 import Str from 'expensify-common/lib/str';
 import ONYXKEYS from '../ONYXKEYS';
 import * as ReportUtils from './ReportUtils';
@@ -75,6 +75,22 @@ function setIsSidebarLoadedReady() {
     resolveSidebarIsReadyPromise();
 }
 
+// Define a cache object to store the memoized results
+const reportIDsCache = new Map();
+
+// Function to set a key-value pair while maintaining the maximum key limit
+function setWithLimit(map, key, value) {
+    if (map.size >= 5) {
+        // If the map has reached its limit, remove the first (oldest) key-value pair
+        const firstKey = map.keys().next().value;
+        map.delete(firstKey);
+    }
+    map.set(key, value);
+}
+
+// Variable to verify if ONYX actions are loaded
+let hasInitialReportActions = false;
+
 /**
  * @param {String} currentReportId
  * @param {Object} allReportsDict
@@ -85,22 +101,46 @@ function setIsSidebarLoadedReady() {
  * @returns {String[]} An array of reportIDs sorted in the proper order
  */
 function getOrderedReportIDs(currentReportId, allReportsDict, betas, policies, priorityMode, allReportActions) {
+    // Generate a unique cache key based on the function arguments
+    const cachedReportsKey = JSON.stringify(
+        // eslint-disable-next-line es/no-optional-chaining
+        [currentReportId, allReportsDict, betas, policies, priorityMode, allReportActions[`${ONYXKEYS.COLLECTION.REPORT_ACTIONS}${currentReportId}`]?.length || 1],
+        (key, value) => {
+            /**
+             *  Exclude 'participantAccountIDs', 'participants' and 'lastMessageText' not to overwhelm a cached key value with huge data,
+             *  which we don't need to store in a cacheKey
+             */
+            if (key === 'participantAccountIDs' || key === 'participants' || key === 'lastMessageText') {
+                return undefined;
+            }
+            return value;
+        },
+    );
+
+    // Check if the result is already in the cache
+    if (reportIDsCache.has(cachedReportsKey) && hasInitialReportActions) {
+        return reportIDsCache.get(cachedReportsKey);
+    }
+
+    // This is needed to prevent caching when Onyx is empty for a second render
+    hasInitialReportActions = Object.values(lastReportActions).length > 0;
+
     const isInGSDMode = priorityMode === CONST.PRIORITY_MODE.GSD;
     const isInDefaultMode = !isInGSDMode;
-
+    const allReportsDictValues = Object.values(allReportsDict);
     // Filter out all the reports that shouldn't be displayed
-    const reportsToDisplay = _.filter(allReportsDict, (report) => ReportUtils.shouldReportBeInOptionList(report, currentReportId, isInGSDMode, betas, policies, allReportActions, true));
+    const reportsToDisplay = allReportsDictValues.filter((report) => ReportUtils.shouldReportBeInOptionList(report, currentReportId, isInGSDMode, betas, policies, allReportActions, true));
 
-    if (_.isEmpty(reportsToDisplay)) {
+    if (reportsToDisplay.length === 0) {
         // Display Concierge chat report when there is no report to be displayed
-        const conciergeChatReport = _.find(allReportsDict, ReportUtils.isConciergeChatReport);
+        const conciergeChatReport = allReportsDictValues.find(ReportUtils.isConciergeChatReport);
         if (conciergeChatReport) {
             reportsToDisplay.push(conciergeChatReport);
         }
     }
 
     // There are a few properties that need to be calculated for the report which are used when sorting reports.
-    _.each(reportsToDisplay, (report) => {
+    reportsToDisplay.forEach((report) => {
         // Normally, the spread operator would be used here to clone the report and prevent the need to reassign the params.
         // However, this code needs to be very performant to handle thousands of reports, so in the interest of speed, we're just going to disable this lint rule and add
         // the reportDisplayName property to the report object directly.
@@ -121,52 +161,45 @@ function getOrderedReportIDs(currentReportId, allReportsDict, betas, policies, p
     // 5. Archived reports
     //      - Sorted by lastVisibleActionCreated in default (most recent) view mode
     //      - Sorted by reportDisplayName in GSD (focus) view mode
-    let pinnedReports = [];
-    let outstandingIOUReports = [];
-    let draftReports = [];
-    let nonArchivedReports = [];
-    let archivedReports = [];
-    _.each(reportsToDisplay, (report) => {
+    const pinnedReports = [];
+    const outstandingIOUReports = [];
+    const draftReports = [];
+    const nonArchivedReports = [];
+    const archivedReports = [];
+    reportsToDisplay.forEach((report) => {
         if (report.isPinned) {
             pinnedReports.push(report);
-            return;
-        }
-
-        if (ReportUtils.isWaitingForIOUActionFromCurrentUser(report)) {
+        } else if (ReportUtils.isWaitingForIOUActionFromCurrentUser(report)) {
             outstandingIOUReports.push(report);
-            return;
-        }
-
-        if (report.hasDraft) {
+        } else if (report.hasDraft) {
             draftReports.push(report);
-            return;
-        }
-
-        if (ReportUtils.isArchivedRoom(report)) {
+        } else if (ReportUtils.isArchivedRoom(report)) {
             archivedReports.push(report);
-            return;
+        } else {
+            nonArchivedReports.push(report);
         }
-
-        nonArchivedReports.push(report);
     });
 
     // Sort each group of reports accordingly
-    pinnedReports = _.sortBy(pinnedReports, (report) => report.displayName.toLowerCase());
-    outstandingIOUReports = lodashOrderBy(outstandingIOUReports, ['iouReportAmount', (report) => report.displayName.toLowerCase()], ['desc', 'asc']);
-    draftReports = _.sortBy(draftReports, (report) => report.displayName.toLowerCase());
-    nonArchivedReports = isInDefaultMode
-        ? lodashOrderBy(nonArchivedReports, ['lastVisibleActionCreated', (report) => report.displayName.toLowerCase()], ['desc', 'asc'])
-        : lodashOrderBy(nonArchivedReports, [(report) => report.displayName.toLowerCase()], ['asc']);
-    archivedReports = _.sortBy(archivedReports, (report) => (isInDefaultMode ? report.lastVisibleActionCreated : report.displayName.toLowerCase()));
-
-    // For archived reports ensure that most recent reports are at the top by reversing the order of the arrays because underscore will only sort them in ascending order
+    pinnedReports.sort((a, b) => a.displayName.toLowerCase().localeCompare(b.displayName.toLowerCase()));
+    outstandingIOUReports.sort((a, b) => b.iouReportAmount - a.iouReportAmount || a.displayName.toLowerCase().localeCompare(b.displayName.toLowerCase()));
+    draftReports.sort((a, b) => a.displayName.toLowerCase().localeCompare(b.displayName.toLowerCase()));
     if (isInDefaultMode) {
-        archivedReports.reverse();
+        nonArchivedReports.sort(
+            (a, b) => new Date(b.lastVisibleActionCreated) - new Date(a.lastVisibleActionCreated) || a.displayName.toLowerCase().localeCompare(b.displayName.toLowerCase()),
+        );
+        // For archived reports ensure that most recent reports are at the top by reversing the order
+        archivedReports.sort((a, b) => new Date(a.lastVisibleActionCreated) - new Date(b.lastVisibleActionCreated));
+    } else {
+        nonArchivedReports.sort((a, b) => a.displayName.toLowerCase().localeCompare(b.displayName.toLowerCase()));
+        archivedReports.sort((a, b) => a.displayName.toLowerCase().localeCompare(b.displayName.toLowerCase()));
     }
 
     // Now that we have all the reports grouped and sorted, they must be flattened into an array and only return the reportID.
     // The order the arrays are concatenated in matters and will determine the order that the groups are displayed in the sidebar.
-    return _.pluck([].concat(pinnedReports).concat(outstandingIOUReports).concat(draftReports).concat(nonArchivedReports).concat(archivedReports), 'reportID');
+    const LHNReports = [].concat(pinnedReports, outstandingIOUReports, draftReports, nonArchivedReports, archivedReports).map((report) => report.reportID);
+    setWithLimit(reportIDsCache, cachedReportsKey, LHNReports);
+    return LHNReports;
 }
 
 /**