There are lots of people here that can help you but you need to provide some information if you will please.
1 What browser are you using
2 have you gone through all of the things WGT says to to do optimize your computer
http://www.wgt.com/help.aspx#sysreq
What is your operating system, CPU, RAM
YOu will get a lot of feedback if you put more info out there so people will know what to tell you.
LD