diff --git a/src/Cache/Context/OgRoleCacheContext.php b/src/Cache/Context/OgRoleCacheContext.php
index d7eb24f57..8647ea156 100644
--- a/src/Cache/Context/OgRoleCacheContext.php
+++ b/src/Cache/Context/OgRoleCacheContext.php
@@ -9,7 +9,6 @@
 use Drupal\Core\Session\AccountInterface;
 use Drupal\Core\Site\Settings;
 use Drupal\og\MembershipManagerInterface;
-use Drupal\og\OgRoleInterface;
 
 /**
  * Defines a cache context service for the OG roles of the current user.
@@ -88,9 +87,13 @@ public function getContext() {
     if (empty($this->hashes[$this->user->id()])) {
       $memberships = [];
       foreach ($this->membershipManager->getMemberships($this->user->id()) as $membership) {
-        $role_names = array_map(function (OgRoleInterface $role) {
-          return $role->getName();
-        }, $membership->getRoles());
+        // Derive the role names from the role IDs. This is faster than loading
+        // the OgRole object from the membership.
+        $role_names = array_map(function (string $role_id) use ($membership): string {
+          $pattern = preg_quote("{$membership->getGroupEntityType()}-{$membership->getGroupBundle()}-");
+          preg_match("/$pattern(.+)/", $role_id, $matches);
+          return $matches[1];
+        }, $membership->getRolesIds());
         if ($role_names) {
           $memberships[$membership->getGroupEntityType()][$membership->getGroupId()] = $role_names;
         }
diff --git a/src/Entity/OgMembership.php b/src/Entity/OgMembership.php
index d48e7e17b..470e38856 100644
--- a/src/Entity/OgMembership.php
+++ b/src/Entity/OgMembership.php
@@ -11,6 +11,7 @@
 use Drupal\Core\Entity\EntityTypeInterface;
 use Drupal\Core\Field\BaseFieldDefinition;
 use Drupal\Core\Field\FieldStorageDefinitionInterface;
+use Drupal\Core\Language\LanguageInterface;
 use Drupal\user\UserInterface;
 use Drupal\og\Og;
 use Drupal\og\OgMembershipInterface;
@@ -84,7 +85,7 @@ class OgMembership extends ContentEntityBase implements OgMembershipInterface {
    * {@inheritdoc}
    */
   public function getCreatedTime(): int {
-    return $this->get('created')->value;
+    return $this->getFieldValue('created', 'value') ?: 0;
   }
 
   /**
@@ -107,8 +108,9 @@ public function getOwner() {
    * {@inheritdoc}
    */
   public function getOwnerId() {
-    assert(!empty($this->get('uid')->entity), new \LogicException(__METHOD__ . '() should only be called on loaded memberships, or on newly created memberships that already have the owner set.'));
-    return $this->get('uid')->target_id;
+    $owner_id = $this->getFieldValue('uid', 'target_id');
+    assert(!empty($owner_id), new \LogicException(__METHOD__ . '() should only be called on loaded memberships, or on newly created memberships that already have the owner set.'));
+    return $owner_id;
   }
 
   /**
@@ -141,24 +143,27 @@ public function setGroup(ContentEntityInterface $group): OgMembershipInterface {
    * {@inheritdoc}
    */
   public function getGroupEntityType(): string {
-    assert(!empty($this->get('entity_type')->value), new \LogicException(__METHOD__ . '() should only be called on loaded memberships, or on newly created memberships that already have the group type set.'));
-    return $this->get('entity_type')->value;
+    $entity_type = $this->getFieldValue('entity_type', 'value') ?: '';
+    assert(!empty($entity_type), new \LogicException(__METHOD__ . '() should only be called on loaded memberships, or on newly created memberships that already have the group type set.'));
+    return $entity_type;
   }
 
   /**
    * {@inheritdoc}
    */
   public function getGroupBundle(): string {
-    assert(!empty($this->get('entity_bundle')->value), new \LogicException(__METHOD__ . '() should only be called on loaded memberships, or on newly created memberships that already have the group bundle set.'));
-    return $this->get('entity_bundle')->value;
+    $bundle = $this->getFieldValue('entity_bundle', 'value') ?: '';
+    assert(!empty($bundle), new \LogicException(__METHOD__ . '() should only be called on loaded memberships, or on newly created memberships that already have the group bundle set.'));
+    return $bundle;
   }
 
   /**
    * {@inheritdoc}
    */
   public function getGroupId(): string {
-    assert(!empty($this->get('entity_id')->value), new \LogicException(__METHOD__ . '() should only be called on loaded memberships, or on newly created memberships that already have the group ID set.'));
-    return $this->get('entity_id')->value;
+    $entity_id = $this->getFieldValue('entity_id', 'value') ?: '';
+    assert(!empty($entity_id), new \LogicException(__METHOD__ . '() should only be called on loaded memberships, or on newly created memberships that already have the group ID set.'));
+    return $entity_id;
   }
 
   /**
@@ -179,16 +184,19 @@ public function getGroupId(): string {
    *   Whether or not the group is already present.
    */
   protected function hasGroup(): bool {
-    return !empty($this->get('entity_type')->value) && !empty($this->get('entity_bundle')->value) && !empty($this->get('entity_id')->value);
+    $has_group =
+      !empty($this->getFieldValue('entity_type', 'value')) &&
+      !empty($this->getFieldValue('entity_bundle', 'value')) &&
+      !empty($this->getFieldValue('entity_id', 'value'));
+    return $has_group;
   }
 
   /**
    * {@inheritdoc}
    */
   public function getGroup(): ?ContentEntityInterface {
-    assert(!empty($this->get('entity_type')->value) || !empty($this->get('entity_id')->value), new \LogicException(__METHOD__ . '() should only be called on loaded memberships, or on newly created memberships that already have the group set.'));
-    $entity_type = $this->get('entity_type')->value;
-    $entity_id = $this->get('entity_id')->value;
+    $entity_type = $this->getGroupEntityType();
+    $entity_id = $this->getGroupId();
 
     return \Drupal::entityTypeManager()->getStorage($entity_type)->load($entity_id);
   }
@@ -205,7 +213,7 @@ public function setState(string $state): OgMembershipInterface {
    * {@inheritdoc}
    */
   public function getState(): string {
-    return $this->get('state')->value;
+    return $this->getFieldValue('state', 'value') ?: '';
   }
 
   /**
@@ -287,9 +295,25 @@ public function setRoles(array $roles = []): OgMembershipInterface {
    * {@inheritdoc}
    */
   public function getRolesIds(): array {
-    return array_map(function (OgRole $role) {
-      return $role->id();
-    }, $this->getRoles());
+    // Only use $this->get() if it is already populated. If it is not available
+    // then use the raw value. This field is not translatable so we do not need
+    // the slow field definition lookup from $this->getTranslatedField().
+    if (isset($this->fields['roles'][LanguageInterface::LANGCODE_DEFAULT])) {
+      $values = $this->get('roles')->getValue();
+    }
+    else {
+      $values = $this->values['roles'][LanguageInterface::LANGCODE_DEFAULT] ?? [];
+    }
+
+    $roles_ids = array_column($values, 'target_id');
+
+    // Add the member role. This is only possible if a group has been set on the
+    // membership.
+    if ($this->hasGroup()) {
+      $roles_ids[] = "{$this->getGroupEntityType()}-{$this->getGroupBundle()}-" . OgRoleInterface::AUTHENTICATED;
+    }
+
+    return $roles_ids;
   }
 
   /**
@@ -562,4 +586,54 @@ public function isOwner(): bool {
     return $group instanceof EntityOwnerInterface && $group->getOwnerId() == $this->getOwnerId();
   }
 
+  /**
+   * Gets the value of a specific property of a field.
+   *
+   * Only the first delta can be accessed with this method.
+   *
+   * @todo Remove this once issue #2580551 is fixed.
+   *
+   * @see https://www.drupal.org/project/drupal/issues/2580551
+   *
+   * @param string $field_name
+   *   The name of the field.
+   * @param string $property
+   *   The field property, "value" for many field types.
+   *
+   * @return mixed
+   *   The value.
+   */
+  public function getFieldValue($field_name, $property) {
+    // Attempt to get the value from the values directly if the field is not
+    // initialized yet.
+    if (!isset($this->fields[$field_name])) {
+      $field_values = NULL;
+      if (isset($this->values[$field_name][$this->activeLangcode])) {
+        $field_values = $this->values[$field_name][$this->activeLangcode];
+      }
+      elseif (isset($this->values[$field_name][LanguageInterface::LANGCODE_DEFAULT])) {
+        $field_values = $this->values[$field_name][LanguageInterface::LANGCODE_DEFAULT];
+      }
+
+      if ($field_values !== NULL) {
+        // If there are field values, try to get the property value.
+        // Configurable/Multi-value fields are stored differently, try accessing
+        // with delta and property first, then without delta and last, if the
+        // value is a scalar, just return that.
+        if (isset($field_values[0][$property]) && is_array($field_values[0])) {
+          return $field_values[0][$property];
+        }
+        elseif (isset($field_values[$property]) && is_array($field_values)) {
+          return $field_values[$property];
+        }
+        elseif (!is_array($field_values)) {
+          return $field_values;
+        }
+      }
+    }
+
+    // Fall back to access the property through the field object.
+    return $this->get($field_name)->$property;
+  }
+
 }
diff --git a/tests/src/Unit/Cache/Context/OgRoleCacheContextTest.php b/tests/src/Unit/Cache/Context/OgRoleCacheContextTest.php
index 973d2a12f..5fcfd1d4b 100644
--- a/tests/src/Unit/Cache/Context/OgRoleCacheContextTest.php
+++ b/tests/src/Unit/Cache/Context/OgRoleCacheContextTest.php
@@ -76,9 +76,7 @@ public function testMembershipsWithOrphanedRole() {
     // group entity type, but no roles.
     /** @var \Drupal\og\OgMembershipInterface|\Prophecy\Prophecy\ObjectProphecy $membership */
     $membership = $this->prophesize(OgMembershipInterface::class);
-    $membership->getGroupEntityType()->willReturn('test_entity');
-    $membership->getGroupId()->willReturn('test_id');
-    $membership->getRoles()->willReturn([]);
+    $membership->getRolesIds()->willReturn([]);
 
     // The membership with the orphaned role will be returned by the membership
     // manager.
@@ -137,19 +135,17 @@ public function testMemberships(array $group_memberships, array $expected_identi
       $memberships[$user_id] = [];
       foreach ($group_entity_type_ids as $group_entity_type_id => $group_ids) {
         foreach ($group_ids as $group_id => $roles) {
-          // Mock the role objects that will be contained in the memberships.
-          $roles = array_map(function ($role_name) {
-            /** @var \Drupal\og\OgRoleInterface|\Prophecy\Prophecy\ObjectProphecy $role */
-            $role = $this->prophesize(OgRoleInterface::class);
-            $role->getName()->willReturn($role_name);
-            return $role->reveal();
+          // Construct the role IDs that will be returned by the membership.
+          $roles_ids = array_map(function (string $role_name) use ($group_entity_type_id) {
+            return "{$group_entity_type_id}-bundle-{$role_name}";
           }, $roles);
           // Mock the expected returns of method calls on the membership.
           /** @var \Drupal\og\OgMembershipInterface|\Prophecy\Prophecy\ObjectProphecy $membership */
           $membership = $this->prophesize(OgMembershipInterface::class);
           $membership->getGroupEntityType()->willReturn($group_entity_type_id);
+          $membership->getGroupBundle()->willReturn('bundle');
           $membership->getGroupId()->willReturn($group_id);
-          $membership->getRoles()->willReturn($roles);
+          $membership->getRolesIds()->willReturn($roles_ids);
           $memberships[$user_id][++$membership_id] = $membership->reveal();
         }
       }