WordPress Core Web Vitals fail for most sites I've looked at. The fix is almost never "better hosting" or "buy a caching plugin." It's usually 3 specific things that are easy to miss because the generic advice doesn't go deep enough. 🧵
5/ The fix most people skip: critical CSS inlining. Generate it with tools like CriticalCSS.com, then inline it in your head and defer the rest. Combined with the above, most WordPress sites go from red to green on PageSpeed in under an hour.