Before you start any tweaks tka e a record of your fps then after mounths of tweaking compare it, I think, well at least in my case, it wasn't the weeks of tweaking that got better perforamce but getting to know the differant things to turn off and on in the actul display settings.
But yes, turn the autogen off and you could double your fps, the new fsx ground textures are so good it doesn't really matter, id rather the textures than out of proportion 3d objects
