After installing phpfox 4.6.1 I noticed that the site works quite slowly. In Google PageSpeed Insights, the site has 15/100 points for mobile and 24/100 for computers. - these are values for the new installation, without photos and users. I set the Javascript & CSS Bundle on Yes and it did not help much. I have gzip on, but it does not help ... In GTmetrix.com I have the result: PageSpeed Score - F (25%), YSlow Score - C (75%), Fully Loaded Time - 4.6 seconds, Total Page Size - 4 MB.
These values are far too large, in particular the size of the page.
I am using a VPS server.
How to fix it?