My performance report from Hummingbird seems to indicate an extremely low score when it comes to “Render blocking”. The strange thing is, it seems to be coming from WPMU DEV, render blocking behind “cloudfront.net”:
Optimize CSS Delivery of the following:
so from what it looks like, your own plugin, which is designed to help my performance, is causing me to have a low performance report when it comes to render blocking CSS and js. It is giving me the same report for Pagespeed insights.