"Psychology of performance" slides from Velocity 2010. http://en.oreilly.com/velocity2010/public/schedule/detail/13019 Running PageSpeed - all checks. YSlow - A. So what's next to do? Well, you can cheat! You know that time is relative - one hour with your mother-in-law feels much longer than one hour on the beach. The same way you can bend the perception of the page loading time and make the page feel faster, even though the RTT is the same.