Wordpress Caching

- WP Rocket: Works ok, it does need fine tuning and my feeling is it doesn't work out of the box on Apis.

- W3TC: Too much bloat. Needs too much tuning when used for other features besides page cache.

- Swift Performance: Does basic features, better alternatives.

- WP Fastest Cache: perhaps some stuff need to be reconfigured to make it work properly

- WP-Optimize: basically no gain

- NitroPack: This one is great, but has a monthly plan by page number or something

- Cache Enabler: Does the job, is free, is easy

- Automattics WP Super Cache: does the jobs, is free, works with PhastPress 

Minification and deferring assets

- PhastPress: does the job, is free, work well

- Autoptimize: does the job well enough when you spend a bit to fine-tune some stuff, but may break your site

- W3TC: has stuff, dunno what does what

- NitroPack: has the best critical CSS generator, but requires monthly subscription per page number(edited)