Solid checklist — the delete instead of defer point is the one most WordPress guides skip. In practice the biggest LCP wins on small sites come from dropping slider or carousel plugins and lazy-loading below-the-fold hero images, not from another caching layer. I would also add a field-data step: lab scores can look green while CrUX shows the real mobile experience is still red on mid-tier Android devices. Disclosure: I am affiliated with Scanly, a site-audit tool that surfaces these same CWV issues. Do you usually triage LCP first and leave INP and CLS until after, or work through all three together?