To me it's not a matter of speed (although the fury that amount of urgency invests is good for the character), it's more the pitch that bothers me. His voice is artificially deepened either by use of a harmonizer or slowing the tape down (I'm not sure which. Ben Burtt doesn't return my calls). I prefer the real voice to the phonied up one, although the helmet thing isn't really something I had entered into my equation.