Well, truth be known, I've frequently loaded HUGE images into ImageFX, along the size of 6000 x 6000 without a whole lot of trouble. Actually IFX was the ONLY app I have on the Amiga that would even display the images. Slow? Somewhat, but not unusably slow, and it certainly didn't crash. IFX's stability is very dependent on hardware and VM configuration. Also, FXForge is compatible with Photoshop's Filter Factory, so that leaves a lot of doors open.