A) According to
this, you need to add the async attribute to all script tag references. I'm not sure if that will work though.
B) You could merge a bunch of CSS templates together in vBulletin, but this may result in issues when a certain template doesn't load certain CSS templates.
You other options are:
- Use something such as Cloudflare or Incapsula to optimize your site.
-
Minify your CSS templates, be sure to keep a copy of the normal beautified version of your CSS templates.