io uso da un po di tempo il vostro template. ci vuole molto tempo per aprire la home.
come risolvere?

Friend, I did not answer your question, but if the site is slow, use the jch-optimize plugin. Surely your website will get faster.

I try ...
I'm now using jotcache but the site is slow.
Thank you

Friend, install this plugin, you will see how the site will stay fast, it reduces the code of the pages, making them lighter.

Are there any special settings to make?

It's easy to do, just click on buttons. In the Joomla repository where you download the plugin, there is a manual explaining how to use it. My site was slow too, when installing the plugin and simply click on few settings the site was already very fast on loading. Hugs