I have noticed that SL is rezzing textures extremly slow, making it almost impossible to browse big stores. Besides that, even though I hae a whole 8mb/s dedicated to SL (And yes, those are constantly available) it is never using above 200 kB/s. After changing HTTP Textures to off, everything loaded extremly fast, but movement seemed rendered impossible. I have further noticed that quite many times textures never appear at all, especially on avatars and the game starts freezing when turning view after a few minutes in a sim.