Perfmatters VS FlyingPress

Once you are done with Perfmatters plugin payment, you will receive an email confirmation along with login details of to download 'Perfmatters' plugin.

Once you are done installing Perfmatters plugin, you can do the basic settings by following the instructions given at: https://perfmatters.io/docs/settings-recommendations

Suppose you're careful and use Test Mode, which is unlikely. Always test major script changes on staging or use rollback.

Absolutely. In fact, lazy loading and script disabling help mobile performance even more than desktop in most cases.

Mostly, yes. But if you're unsure, start with basic toggles and avoid Script Manager until you're confident.

No, FlyingPress handles all caching and optimization tasks in one plugin — no extras needed.

Yes, it works seamlessly with WordPress Multisite setups for both subdomains and subdirectories.