@rmdes Yes, I have been doing some load tests with Cloudron app vs Vanilla WP vs OpenLite Speed. Generally, having redis is not much of a difference. What makes the big difference is static page caches like W3 Total Cache. It's also the reason OLS on first run appears so fast (it has a cache plugin enabled by default). Redis cache is for objects and dynamic pages, it's not going to make things much fast.
Note that one pain of these static cache plugins is that you have to clear the cache manually (or set some timer to re-generate the cache).