Yes, that is quite slow! What is the admin url again? (If you add it to your profile it will show in all your posts for us :-) )

Hi :-)

i have many sites where Jevents is active (as i love this component) and in the profile i can add only one...
so i write details here

i have disabled the option to show counts on cell calendar and list rows as i read it was demanding a lot of resources but it seems still slow

So I enabled debug and took a look. the Page speed for Queries is good: 292.85ms to be exact on second load and on first load 653ms.

The problem is the routing of your site at how to get there I suspect. If you disable SH404 and access:

https://www.yogafirenze.it/index.php?option=com_jevents&view=month&layout=calendar&Itemid=1109

Is it much faster for you? It is to me!