Asset CleanUp Pro works together with caching plugins. First, you eliminate the bloat by preventing useless CSS/JS from loading on your pages.
Then, a caching plugin such as WP Rocket will take the remaining loaded files, minify/combine them and also cache the pages (by generating static HTML files which are accessed very quickly)
Higher page speed score
Fewer HTTP requests
Faster page load
Increased SEO ranking
More visitor retention
Increased conversions