ok so i jumped the gun on ie being faster :) if the image is not scaled at all, both ie and ff work great. the second you setStyle width or height, they are both brought to their knees. IE8 more so than ff. Chrome handles it well in all cases. But clients dont use chrome :) Any ideas as to why scrolling would be extremely slow when an image has its dimensions set through css? Just a limit of Fx.Scroll or browser quirks?
thanks
