I didn't mean the speed itself was all that impressive (by itself). But when you combine switching the rhythmic groupings, and just WHAT he's playing, I find it impressive as hell.
I'm quite aware of what he was CAPABLE of doing. But quite frankly, I don't want to hear 32nd notes at 150 bpm. I find it abrasive to my ears, and irritating most of the time. I only give the above example because he did it more commonly (solos on songs like Get You Back, Gray Pianos Flying, etc etc).