server load issue (cache oprimization)
 

Hi everyone, my hoster asked me to do somethings to improve the velocity of my site: fiattipoclub.it
their QoS signaled that the site is slow and the load on the shared server is too high. They suggest me to introduce some caching module. Can you please help me?

Shared hosts are usually terrible, I wouldn't ever host anything on a shared host.
Always go for at least a VPS. Even if you were to implement caching, it would still not be enough for the shared host to stop complaining because there are still queries and PHP scripts that need to be executed.

thank you Dave, do you think there is something I can do (changing host apart)?

Make sure you are running PHP 7 if not already. Aside from that there's not a whole lot you can do on a shared host.

7.2, thank you.

I'll second this. The only shared hosting I use is for testing purposes and even that is the top of the line shared hosting package.