Not that I would be anywhere near as fast as the guy, but if I would be his teacher, I'd ask him to turn down the gain, use thicker strings and make sure he has to fight for his notes more, that would bring him closer to a real Jimi attitude.
Please don't get me wrong, it's great as is, just with the sound, the guitar and the overall attitude that comes across, it seems a bit too effortless to really grab me by the balls.
I wanna see a player suffer, fly and die around a song as strong as purple haze.