When the fog is set especially high, it has a couple of pretty bad effects. For one, it causes the game to hitch and stutter as objects pop in. And because it's so constantly popping in very close objects, you can see them popping in through the fog. In real life, fog fades over a pretty significant distance. And it's pretty jarring to see houses popping up within your visibility. Fog should not have such an extreme effect on where rendering stops for objects, so we can have thick fog without the obvious popping in of objects, which would also help with performance. {F18077}