Wolfire Games Forums

I recently bought Overgrowth and I can get to the main menu fine but as soon as I try to load up a level I get massive lag, probably less than 1 FPS. I'm not sure whether my computer is not powerful enough or what but I really want to play the game and have been looking forward to it for a long time.

Well, first get your preorder tag by following the instructions here.
Then ask the same question in the Overgrowth SPF. You're a lot more likely to get help there.

It's also a good idea to post your computer's information - what processor/CPU, what graphics card, is it a laptop or PC and so on. As he said, you'll likely get an answer faster on the Secret Preorder Forum.