Core Web Vitals directly affect rankings and conversion. Here is the order of actions I apply on projects.
1. Images
WebP/AVIF, correct sizes, lazy-loading below the fold and priority for the LCP image.
2. Fonts and critical CSS
Preload key fonts, font-display: swap and minimise render-blocking CSS.
3. Cache and database
Page cache, object cache (Redis), cleaning autosaves and revisions, optimising heavy queries.
The result
On a typical project these steps bring LCP below 2 seconds and consistently green metrics.