I'm playing with all the unofficial patches and such, but apparently they don't help with floating rocks. i go into Shadowgreen Cavern to find a book for Urag, and I'm baffled by my framerate suddenly going into the toilet. At first I thought it was the vastness of the cave's upper reaches that was messing me up, but it should NOT be doing that. I've got a good setup, and can handle the large number of mods I've got running just fine. Then I wander over to where the spriggan and the bear attack, and lo and behold, there's a floating rock just in the middle of the little clearing. If I stand right next to it and look anywhere but at it, my framerate is fine, but as soon as I look at it, it drops down into the single digits.
Any suggestions?