I seldom review extensions, but I have to shout it out. Jbetolo is amazing. One simple change took my site Yslow from 94 to 100 and Pagespeed insights Mobile from 64 to 91, Desktop 85 to 95. Today fast loading sites are a must, Jbetolo the answer for top performance, even improving on my really good, fast template. Thank you to the developers for a great, free product.