I changed nothing from 2.08, but when the new patches came out it looked different. The way the trees were displaying was... how do I describe it... "crisp". Like I was 2 feet away looking at them with ground vis on, but this from 10k above the ground.
Last night I actually did go in and click "default" on the sliders. It didn't help much at all (just a few FPS).
I really don't want to do a full fresh install again. I may have to, though. It's annoying to have to do that. I literally changed nothing at all in any settings inside or outside Aces High.
EDIT:
P.S. I'm using Det 93.71, and have always had animated water off.