I was under the impression the image manipulation slowdown occurred mostly when you want to draw to an ImageBuffer. But in my 2D code I've just started messing around with, I am trying to draw some very large bitmaps onto the screen and everything slows down to 1-2 FPS when any part of those images are drawn, when they are scrolled offscreen everything is fast again. The slowdown occurs with even just 1 pixel of the large bitmaps showing... Will canvasses help this or is this something else that will be improved when Mark implements the image storing flags?