Alright im home:

FUNCTION main(){
sky_color.red = 1;
sky_color.green = 1;
sky_color.blue = 1;
camera.clip_far = 2000; //clip distance in quants
camera.fog_start = 0.8 * 2000; // fog at 80% of clip_range
camera.fog_end = 0.9 * 2000; // fog till 90% of clip_range
fog_color.red = 1;
fog_color.green = 1;
fog_color.blue = 1;
video_switch(7,0,1);
level_load("level.wmb");


}









This will clip everything form your camera. I bet your level lags like a madman if it takes 3 minutes to load up. But if it is 3 minutes to compile on max quality that is normal??? You are talking about when you hit the "Run Level" right???