I’ve just installed WPMU and enabled WPSmush & Hummingbird, as users were complaining about poor site performance. I’ve Smushed all the images and followed most of the Hummingbird recommendations, but it didn’t make a lot of difference. I’ve also emailed our host as there was an issue with Gzip compression (“Your server may not have the “deflate” module enabled (mod_deflate for Apache”:wink: . Not sure what to do next at all. Can you advise?