paul.de.block

Paint.net is extremely slow. I admit I use 16384 x 16384 px images, but that doesn't justify a morning during time elapse to load a picture. I suppose the slow down is due to the undo function. Is there any way I can ommit this function. I'll be very carefully when it's not activated and even if I have to start again, it will take me much less time to correct my mistake than to use the undo function (or to wait for its cache).