Delay when Changing Pages

Hi guys,
When I went to my live site, I pressed on a page on the menu but there was a delay when changing pages. I want to know if there is a code or a setting to remove that delay in order to give customers the smoothest journey ever.

It is loading I think. You can boost the load speed for selected pages like this:

https://www.wix.com/velo/reference/wix-site/prefetchpageresources

It is a pre-load technology.