Nah he is very fast imo, however like Pacquiao he appears faster because he throws clusters/combination's. I think one of the fastest guys out there that no one would think to mention is Kendal Holt, his hands are very fast imo, as fast as Khan's imo.
[ame]http://www.youtube.com/watch?v=B_lGLce3Gqs[/ame] Fighting bums doesnt make you faster and fighting world class fighters dont make you slower.