Arrrrrgghhhh! A pop-up window?! Unforgiveable. Don’t force people to give you feedback. It’s annoying.
Noticed that the site was a bit slow. Looked at your site’s source code and found this: <!-- WP Super Cache is installed but broken. The path to wp-cache-phase1.php in wp-content/advanced-cache.php must be fixed! -->
Seems like WP Super Cache isn’t working properly. Once it’s running properly, the load time will probably be cut in half.