Perhaps to their target market ... I looked at it and thought 'hmmm, 44 seconds to do a simple image transform sounds pretty slow ....'. I assume it was a very high resolution image or thousands of slices or something but without them stating those metrics it was a bit meaningless to me.

edit: OK I downloaded the image and see it's gigantic ... I reckon they should at least hint at that for the folks who are not quite over the threshold of spending the time to do their experiment ...