Ok. Here is simple plan (because i can not see the website) -- calculate with [login to view URL] and [login to view URL] current speed, then compress all images for min sizes, move all scripts to down of code, move all css to up, compress all CSS and JS files, add gzip feature, add cache like APC to php of your webserver, inspect code of your pages, because there maybe errors with scripts which is loding and slow website...... and many other simple work