We tune WordPress performance for a living, and the plugin you choose matters less than how you combine caching, asset optimization and edge delivery. These are the tools we reach for when a client site needs to pass Core Web Vitals.
How we chose
- Real-world Core Web Vitals impact, not just lab PageSpeed numbers.
- Stability: plugins that break layouts or checkouts were penalized.
- Host compatibility, including whether the plugin fights with host-level caching.
- Clear scope: we separated page caches from asset optimizers and edge tools so you can build a stack.
- Honest free tiers where they exist.
Verdict
For most business sites, WP Rocket is still the safest paid choice, and FlyingPress is the one we recommend when the owner wants to chase the top scores. If your host runs LiteSpeed, use LiteSpeed Cache and skip the rest. Add Perfmatters when specific plugins are dumping scripts on every page, and put Cloudflare in front for edge caching once the origin is sorted.
None of these replace good hosting. A well-tuned stack on a slow server still loads slowly, so fix hosting first and then layer the plugins above.