Please check you network connection and Internet path. The site is on a T3 site and we access from a broadband cable modem many hops away. It is lightening fast for us. The site cannot respond faster than your network connection
In other words, the site flies when connectivity between client and server are fast. It is very fast on the server side. The bottleneck is on the client side.
Sometimes providers sell services that saturate their links and the service degrades. This many be happening between you and part of the Internet.