Hello,

Seems that your server is not stable because on the default theme, we can see that site loads more than 4s and It’s not normal for the default theme. On the default theme the page should load around 1s.

https://monosnap.com/file/JqNYBySd9e4lAKtiqy5pjwR2XHiHhE

So you need to check what is wrong with the server because it loads slowly on the backend too so it is not something caused by the theme.

Kind Regards