I have this warning in my site health in tools:

"

A persistent object cache makes your site’s database more efficient, resulting in faster load times because WordPress can retrieve your site’s content and settings much more quickly.

Your hosting provider can tell you if a persistent object cache can be enabled on your site. Your host appears to support the following object caching services: Redis, Memcached."

I use WP fastest cache, and obviously, from this message, it doesn't cover redis/memcache. 

What can I use for Wpforo that will fix this redis/memcache warning, but also will not affect the forum software?