Do sticky killing in an idle callback

src/contentScript.js

@@ -99,9 +99,11 @@ function restoreScrollability() {
 	*/
 function startConstantVigilance() {
 	var observer = new MutationObserver((mutationsList, observer) => {
-		for (var mutation of mutationsList) {
-			killSticky(mutation.target);
-		}
+		window.requestIdleCallback(() => {
+			for (var mutation of mutationsList) {
+				killSticky(mutation.target);
+			}
+		});
 	});
 
 	console.log("Commencing vigilance for stickies!");
@@ -118,8 +120,10 @@ function startConstantVigilance() {
 function beginKillingStickies() {
 	if (!window.AKS) window.AKS = { stickiesKilled: 0 };
 
-	killSticky();
-	startConstantVigilance();
+	window.requestIdleCallback(() => {
+		killSticky();
+		startConstantVigilance();
+	});
 }
 
 /******************/