I'm a newbie so your help will be much appreciated.

In a particular WordPress website, I'm delaying every single JS file on purpose (education and learning process) so that I can find a universal way of determining which particular JS file is blocking an image or a slider div from loading until user interaction (that's when all JS files load based on that interaction).

What I'm hoping to achieve is find which delayed JS file is causing the slider of images to not load so I can disable both jquery scripts AND that particular script.

As long as there's no errors, only load the required files at the start and then delay the rest until user interaction.

I'm hoping this method will extend to just images but also clicking on a burger menu to identify which JS files is delayed in order to avoid double click to the burger menu (to load file based on interaction).

Thanks