Settings Recommendation for Night flying

Any Idea what I can reduce (sliders) for night flying. I love the UT for night flying. I want to keep the bloom. But its a drag on FPS. So what is it that I can reduce (move the sliders to the left) for night flying?Any ideas?MannyPS: The first thing I tried was to set the autogens to 0. But that did not increase my FPS. (SP1 took that autogens to the second processor.)