This is from my Website Developers:
Plus there is another issue to JomSocial, which is easy to fix, so
require from "JomSocial Developers" to provide you a "patch fix" ...
Tell "JomSocial Developers" this:
and also the file
loads facebook login button resources even when user is "logged in",
which slows down the site load. Facebook button must be loaded only when
user is logged out