First off let me explain what I mean. I work on a company that got a WP page with a theme installed and a load of plugins, like YOAST, WooCommerce, more plugins for woo commerce etc etc. Those plugins and the theme itself, generate javascript code for our main webpage. Obviously, that is far from optimized and that's confirmed by: https://gtmetrix.com/ and google insights.
Here comes the question. Is there a way to override some of the js code, by making another "version" of them in the footer? I actually plan to make footer load a js file instead, including overrides, but since I barely know how it will behave, I thought I should ask if I think this right.
It might add to the amount of download plaintext that way. It isn't elegant, since it turns things a little spaghetti, but I plan in the future to make any js call, a call to a js file thus no footer override will be needed and no double code will be downloaded whatsoever, I just need a fast solution for the meantime. I asssume if I add to the amount of download plaintext, I will still might get parallel loading of scripts in compensation, thus loading time will get improved.
Pictures are small jpgs and they don't contribute on loading time in a significant way.
PageSpeed Score is 74% so there is a lot room for improvement. CSS and JS are the major factors.
Do I think this right? Any guides will be appreciated.