Remove unused CSS and TTFB improve




Wordpress LScache Plugin: Remove unused CSS and TTFB improve

Last Updated on: Wed, 15 Apr 2026 00:00:02
Hi, my site is suffering from Core Web Vitals because of unused css it causes FCP and LCP warning. Ive seen in other threads that you plan to introduce this functionality. Is there an expectation to release the feature for remove unused css? and how do I resolve this warning that is causing Total Blocking Time issue? Avoid serving legacy JavaScript to modern browsers Hi, please provide the report number , you can get it in toolbox -> report -> click send to LiteSpeed Best regards, thanks @CacheCrawler follow report number: WUSFHZGN please try upgrade to v4.2 , then go to Genearal -> enable Guest mode and Guest mode optimization you can get it in https://wordpress.org/plugins/litespeed-cache/advanced/ , bottom o fthe page. Ok, it seems to be very interesting. But in my case it broke the page css, I think its because Im on an Nginx server and Lightspeed was waiting for a .htaccess file to write the new rules. However, after testing several plugins (practically all that exist) even on an Nginx server I decided to try Lightspeed last, and its amazing. I managed to improve the score for Core Web Vitals. Soon, Im going to migrate my website to a Lightspeed server, to take advantage of the full potential of this wonderful plugin! Thanks again. Another question: I pay Cloudflare Pro and with official plugin with Automatic Platform Optimization (APO) enabled. If I connect the Cloudflare API via the Lightspeed Cache plugin, will I no longer need the official Cloudflare plugin? And is the APO function still working? you will still need APO , LSCWPs CF API was only for purge cloudflare cache as matter of fact, sometimes some options could cause some incompatiblity issue , as we generaly dont recommend to use LSCWP with any other caching layers



LiteCache Rush: Speed comes from using less, not from doing it faster



Reference