My computer hangs when i open some websites or it opens really slowly?

What kind of internet connection do you have? What other sites lag? With this site, like many chat forums, the lag could be due to the high amount of posts being submitted at the same time, or it could be any number of reasons. Do you delete cookies on a regular basis? All of these details are important in determining why your internet lags so bad. I've had this problem myself so I'm well aware of this and know how to solve the problem. There are many options available.