diff --git a/.github/workflows/ci.yaml b/.github/workflows/ci.yaml
index 6fb8a8ba..a051c6a8 100644
--- a/.github/workflows/ci.yaml
+++ b/.github/workflows/ci.yaml
@@ -68,4 +68,4 @@ jobs:
               run: composer test
     integration-tests:
         name: "REST integration tests"
-        uses: ./.github/workflows/integration-tests-callable.yaml@4.1
+        uses: ./.github/workflows/integration-tests-callable.yaml
diff --git a/composer.json b/composer.json
index 3112f43a..4cf4e14c 100644
--- a/composer.json
+++ b/composer.json
@@ -59,7 +59,8 @@
     "config": {
         "allow-plugins": {
             "composer/package-versions-deprecated": true
-        }
+        },
+        "process-timeout": 600
     },
     "scripts": {
         "fix-cs": "php-cs-fixer fix --config=.php-cs-fixer.php -v --show-progress=dots",
diff --git a/src/bundle/Resources/config/default_settings.yml b/src/bundle/Resources/config/default_settings.yml
index e0a8888c..a5a33dbc 100644
--- a/src/bundle/Resources/config/default_settings.yml
+++ b/src/bundle/Resources/config/default_settings.yml
@@ -87,7 +87,3 @@ parameters:
         createToken:
             mediaType: 'JWT'
             href: 'router.generate("ibexa.rest.create_token")'
-
-    # Boundary times in microseconds which the authentication check will be delayed by.
-    ibexa.rest.authentication_min_delay_time: 30000
-    ibexa.rest.authentication_max_delay_time: 500000
diff --git a/src/bundle/Resources/config/security.yml b/src/bundle/Resources/config/security.yml
index a3f04ed4..f2557ab7 100644
--- a/src/bundle/Resources/config/security.yml
+++ b/src/bundle/Resources/config/security.yml
@@ -10,8 +10,6 @@ services:
             - "@event_dispatcher"
             - '@ibexa.config.resolver'
             - "@?logger"
-            - "%ibexa.rest.authentication_min_delay_time%"
-            - "%ibexa.rest.authentication_max_delay_time%"
         abstract: true
 
     Ibexa\Rest\Server\Security\RestLogoutHandler:
diff --git a/src/lib/Server/Security/RestAuthenticator.php b/src/lib/Server/Security/RestAuthenticator.php
index 59f70811..83baed21 100644
--- a/src/lib/Server/Security/RestAuthenticator.php
+++ b/src/lib/Server/Security/RestAuthenticator.php
@@ -34,10 +34,6 @@
  */
 class RestAuthenticator implements AuthenticatorInterface
 {
-    private const DEFAULT_MIN_SLEEP_VALUE = 30000;
-
-    private const DEFAULT_MAX_SLEEP_VALUE = 500000;
-
     /**
      * @var \Psr\Log\LoggerInterface
      */
@@ -73,25 +69,13 @@ class RestAuthenticator implements AuthenticatorInterface
      */
     private $logoutHandlers = [];
 
-    /**
-     * @var int|null
-     */
-    private $minSleepTime;
-
-    /**
-     * @var int|null
-     */
-    private $maxSleepTime;
-
     public function __construct(
         TokenStorageInterface $tokenStorage,
         AuthenticationManagerInterface $authenticationManager,
         $providerKey,
         EventDispatcherInterface $dispatcher,
         ConfigResolverInterface $configResolver,
-        LoggerInterface $logger = null,
-        $minSleepTime = self::DEFAULT_MIN_SLEEP_VALUE,
-        $maxSleepTime = self::DEFAULT_MAX_SLEEP_VALUE
+        LoggerInterface $logger = null
     ) {
         $this->tokenStorage = $tokenStorage;
         $this->authenticationManager = $authenticationManager;
@@ -99,8 +83,6 @@ public function __construct(
         $this->dispatcher = $dispatcher;
         $this->configResolver = $configResolver;
         $this->logger = $logger;
-        $this->minSleepTime = !is_int($minSleepTime) ? self::DEFAULT_MIN_SLEEP_VALUE : $minSleepTime;
-        $this->maxSleepTime = !is_int($maxSleepTime) ? self::DEFAULT_MAX_SLEEP_VALUE : $maxSleepTime;
     }
 
     /**
@@ -115,8 +97,6 @@ public function __invoke(RequestEvent $event)
 
     public function authenticate(Request $request)
     {
-        usleep(random_int($this->minSleepTime, $this->maxSleepTime));
-
         // If a token already exists and username is the same as the one we request authentication for,
         // then return it and mark it as coming from session.
         $previousToken = $this->tokenStorage->getToken();