diff --git a/packages/cubejs-testing-drivers/fixtures/redshift.json b/packages/cubejs-testing-drivers/fixtures/redshift.json
index 0bdfbe1db1136..6d6f027e3202b 100644
--- a/packages/cubejs-testing-drivers/fixtures/redshift.json
+++ b/packages/cubejs-testing-drivers/fixtures/redshift.json
@@ -24,6 +24,8 @@
       "CUBEJS_DB_NAME": "dev",
       "CUBEJS_DB_USER": "${DRIVERS_TESTS_CUBEJS_DB_REDSHIFT_USER}",
       "CUBEJS_DB_PASS": "${DRIVERS_TESTS_CUBEJS_DB_REDSHIFT_PASS}",
+      "CUBEJS_DB_MAX_POOL": "2",
+      "CUBEJS_DB_QUERY_TIMEOUT": "15m",
 
       "CUBEJS_PG_SQL_PORT": "5656",
       "CUBEJS_SQL_USER": "admin",
@@ -193,7 +195,11 @@
     "---------------------------------------",
     "SKIPPED SQL API (Need work)            ",
     "---------------------------------------",
-    "SQL API: SQL push down push to cube quoted alias"
+    "SQL API: SQL push down push to cube quoted alias",
+
+    "Skipped because are too heavy and leads to Connection terminated unexpectedly or ECONNREFUSED or ECONNRESET",
+    "SQL API: Rolling Window YTD (year + month + day + date_trunc equal)",
+    "SQL API: Rolling Window YTD (year + month + day + date_trunc IN)"
   ],
   "tesseractSkip": [
     "querying custom granularities ECommerce: count by three_months_by_march + no dimension",
@@ -226,6 +232,10 @@
     "---- Different results comparing to baseQuery version. Need to investigate ----",
     "querying BigECommerce: rolling window YTD (month + week)",
     "querying BigECommerce: rolling window YTD (month + week + no gran)",
-    "querying BigECommerce: rolling window YTD without granularity"
+    "querying BigECommerce: rolling window YTD without granularity",
+
+    "Skipped because are too heavy and leads to Connection terminated unexpectedly or ECONNREFUSED or ECONNRESET",
+    "SQL API: Rolling Window YTD (year + month + day + date_trunc equal)",
+    "SQL API: Rolling Window YTD (year + month + day + date_trunc IN)"
   ]
 }
diff --git a/packages/cubejs-testing-drivers/src/tests/testQueries.ts b/packages/cubejs-testing-drivers/src/tests/testQueries.ts
index 1c09b2f53178d..d5304e24a0a29 100644
--- a/packages/cubejs-testing-drivers/src/tests/testQueries.ts
+++ b/packages/cubejs-testing-drivers/src/tests/testQueries.ts
@@ -23,9 +23,17 @@ type TestQueriesOptions = {
   externalSchemaTests?: boolean,
 };
 
+export const delay = (ms: number) => new Promise((resolve) => setTimeout(resolve, ms));
+
+const OP_DELAY = 1000;
+
 export function testQueries(type: string, { includeIncrementalSchemaSuite, extendedEnv, includeHLLSuite, externalSchemaTests }: TestQueriesOptions = {}): void {
   describe(`Queries with the @cubejs-backend/${type}-driver${extendedEnv ? ` ${extendedEnv}` : ''}`, () => {
-    jest.setTimeout(60 * 5 * 1000);
+    if (type.includes('redshift')) {
+      jest.setTimeout(60 * 15 * 1000);
+    } else {
+      jest.setTimeout(60 * 5 * 1000);
+    }
 
     const isTesseractEnv = get('DRIVERS_TESTS_CUBEJS_TESSERACT_SQL_PLANNER').default('false').asBool();
 
@@ -94,6 +102,10 @@ export function testQueries(type: string, { includeIncrementalSchemaSuite, exten
             await test(connection);
           } finally {
             await connection.end();
+
+            if (type.includes('redshift')) {
+              await delay(OP_DELAY);
+            }
           }
         });
       }
@@ -127,6 +139,9 @@ export function testQueries(type: string, { includeIncrementalSchemaSuite, exten
       try {
         for (const q of queries) {
           await driver.createTableRaw(q);
+          if (type.includes('redshift')) {
+            await delay(10 * OP_DELAY);
+          }
         }
         console.log(`Creating ${queries.length} fixture tables completed`);
       } catch (e: any) {
@@ -156,36 +171,48 @@ export function testQueries(type: string, { includeIncrementalSchemaSuite, exten
         contexts: [{ securityContext: { tenant: 't1' } }],
       });
 
+      await delay(OP_DELAY);
+
       await buildPreaggs(env.cube.port, apiToken, {
         timezones: ['UTC'],
         preAggregations: ['ECommerce.SAExternal'],
         contexts: [{ securityContext: { tenant: 't1' } }],
       });
 
+      await delay(OP_DELAY);
+
       await buildPreaggs(env.cube.port, apiToken, {
         timezones: ['UTC'],
         preAggregations: ['ECommerce.TAExternal'],
         contexts: [{ securityContext: { tenant: 't1' } }],
       });
 
+      await delay(OP_DELAY);
+
       await buildPreaggs(env.cube.port, apiToken, {
         timezones: ['UTC'],
         preAggregations: ['BigECommerce.TAExternal'],
         contexts: [{ securityContext: { tenant: 't1' } }],
       });
 
+      await delay(OP_DELAY);
+
       await buildPreaggs(env.cube.port, apiToken, {
         timezones: ['UTC'],
         preAggregations: ['BigECommerce.MultiTimeDimForCountExternal'],
         contexts: [{ securityContext: { tenant: 't1' } }],
       });
 
+      await delay(OP_DELAY);
+
       if (includeHLLSuite) {
         await buildPreaggs(env.cube.port, apiToken, {
           timezones: ['UTC'],
           preAggregations: ['BigECommerce.CountByProductExternal'],
           contexts: [{ securityContext: { tenant: 't1' } }],
         });
+
+        await delay(OP_DELAY);
       }
     });