What is your cache plugin for WPX

I'm a WPX hosting user. Currently I use lite speed cache plugin. It seems that even though WPX use litespeed server, it's not optimized for the plugin

I'm considering to use WP Rocket. What ia your opinion on it?

I think that there are a lot of companies you can move to. But first try to find the ways of solving the issue/getting help from the current provider.
If that is not possible to get issue solved with your current provider than you can start thinking of moving.