Can't create gbuffer/Extreme lag

[surreal]

Hi, I have two problems which probably relate one to another.
Sometimes when I start the game it crashes with "Renderer #0...".
The problem is that it can't create the gbuffer. There's no problem with my drivers, but there is a problem with the fact that the game uses glew. It's the root of all evil and ridden with bugs.
Every time I tried to use that piece of junk it either didn't import some functions or didn't initialize correctly the gl environment.
Frictional Games, please patch glew out. You'll see that many problems for many people will be solved in an instant.

About the extreme lag. I'm almost 100% sure that it's the work of glew once again. Something wasn't initialized correctly and errors are flying at almost every gl function call.

Due to all this, unfortunately, I wasn't even able to play the game (the menu is the farthest I got)

PS. If you're not sure how to get rid of glew you can pm/email me, I'll gladly go into details.