如何从第三方JavaScript跟踪和分析中删除或阻止事件监听器？

I run an e-commerce website and we have various third-party JavaScript that add click handlers to links and forms and then insert a delay to make sure the tracking goes through. The delay is inserted by burning CPU and running a for or while loop until a certain date is passed either 350 ms later (Marketo / Munchkin) or 500ms for Visual Website Optimizer. Combined this is almost 1 second!I run an e-commerce website and we have various