With Shifty Nulled you can disable plugins on specific pages, or devices, for specific user roles or post types, etc. With Shifty you can disable specific CSS or JS files to decrease bloat. You can reduce page size, and optimize javascript and CSS.
You can overwrite CSS/JS files separately for every pages, post types, user roles, device, etc. Remove unused codes, or change anything what you need.
Demo : https://wp-shifty.com/