diff --git a/lib/check.js b/lib/check.js
index d8d2080..871dc91 100644
--- a/lib/check.js
+++ b/lib/check.js
@@ -92,8 +92,14 @@
 	}
 
 	function checkStack(errorStack){
-		var callingStack = parseErrorStack(errorStack);
-		return lists.get("stack").match(callingStack);
+		if (settings.enableStackList){
+			const stackList = lists.get("stack");
+			if (stackList.length){
+				const callingStack = parseErrorStack(errorStack);
+				return stackList.match(callingStack);
+			}
+		}
+		return false;
 	}
 	scope.checkStack = checkStack;
 }());
\ No newline at end of file
diff --git a/releaseNotes.txt b/releaseNotes.txt
index 1047fe5..5e07abd 100644
--- a/releaseNotes.txt
+++ b/releaseNotes.txt
@@ -22,6 +22,7 @@ Version 0.5.9:
 		- enabled copying from settings description when they are "hidden"
 		- fixed description for "show notifications"
 		- improved DOMRect performance
+		- improved general performance when stack list is disabled
 	
 	known issues:
 		- if a data URL is blocked the page action button does not appear