Hello Visvanath,
Server performance really shows up when using the site, but when loading front page pipe width really plays important role, and that issue of his at that time was fixed using CF's network considering his loaded front page, as that time before using CF his page size was exceeding 10MB and as of today where CF have replicated site's assets page size is less than 3MB with no change in content, As his user base has increased overtime, so if site is working slow, server resources are to blame now.
I did missed a paragraph in my previous post, for moodle's site is playing up today, that would have cleared everything.