This is very confusing - pages are loading instantly for me and I still can't find any indications of a problem anywhere in the infrastructure.
I suspect there is some type of problem in the host datacenter's network, so the only remaining option is to gather as much data as we can for me to present it to their support engineers. If you haven't already, please open a command prompt or terminal on your computer, and type ping -n 100 gtplanet.net and then tracert gtplanet.net (if you're on a Mac/Linux, that's traceroute gtplanet.net).
If you're on Windows, you can copy/paste the results of those commands here into this thread by right clicking anywhere in the command prompt window, selecting "Mark", then highlighting all the text you see.