diff --git a/Source/JavaScriptCore/runtime/VM.cpp b/Source/JavaScriptCore/runtime/VM.cpp
index 98f9c0217852a..f1f5679eb00fc 100644
--- a/Source/JavaScriptCore/runtime/VM.cpp
+++ b/Source/JavaScriptCore/runtime/VM.cpp
@@ -807,7 +807,7 @@ void VM::shrinkFootprintWhenIdle()
 {
     whenIdle([=, this] () {
         sanitizeStackForVM(*this);
-        deleteAllCode(PreventCollectionAndDeleteAllCode);
+        deleteAllCode(DeleteAllCodeIfNotCollecting);
         heap.collectNow(Synchronousness::Sync, CollectionScope::Full);
         // FIXME: Consider stopping various automatic threads here.
         // https://bugs.webkit.org/show_bug.cgi?id=185447
diff --git a/Source/WTF/wtf/MemoryPressureHandler.cpp b/Source/WTF/wtf/MemoryPressureHandler.cpp
index 98804f3e82bbc..2e31fb5d39168 100644
--- a/Source/WTF/wtf/MemoryPressureHandler.cpp
+++ b/Source/WTF/wtf/MemoryPressureHandler.cpp
@@ -48,7 +48,7 @@ static const double s_conservativeThresholdFraction = 0.8;
 static const double s_strictThresholdFraction = 0.9;
 #endif
 static const std::optional<double> s_killThresholdFraction;
-static const Seconds s_pollInterval = 5_s;
+static const Seconds s_pollInterval = 30_s;
 
 // This file contains the amount of video memory used, and will be filled by some other
 // platform component. It's a text file containing an unsigned integer value.
diff --git a/Source/WebKit/WebProcess/InjectedBundle/InjectedBundle.cpp b/Source/WebKit/WebProcess/InjectedBundle/InjectedBundle.cpp
index 54652cf33b72e..6e491fb1b596c 100644
--- a/Source/WebKit/WebProcess/InjectedBundle/InjectedBundle.cpp
+++ b/Source/WebKit/WebProcess/InjectedBundle/InjectedBundle.cpp
@@ -251,10 +251,6 @@ bool InjectedBundle::isProcessingUserGesture()
 void InjectedBundle::garbageCollectJavaScriptObjects()
 {
     GCController::singleton().garbageCollectNow();
-    WTF::releaseFastMallocFreeMemory();
-
-    JSLockHolder lock(commonVM());
-    commonVM().shrinkFootprintWhenIdle();
 }
 
 void InjectedBundle::garbageCollectJavaScriptObjectsOnAlternateThreadForDebugging(bool waitUntilDone)