I didn't see any changes. My rig is Intel core i5 2,66 Ghz, Geforce GTX 285 Video card, 4GB DDR3 RAM, Windows 7 OS. I am having, with shadows on, 15-25 FPS (before terraforming and construction was enabled, I had 50-70 FPS). Changing tree distances, etc, has no effect for me. Disabling shadows give me just 4-5 FPS. In beta, it was the same the days after each wipe: when the wipe happened, FPS were great. After some days, performance hit appeared.

Can everybody post their system and what performance they have in game?