I think his decisiveness is what makes him look quicker, he takes the handoff, then one cut and he's heading upfield

he reacts very quickly to his blockers

Good point Diz. There have been a lot of RB's who didn't possess world class speed but because they made quick decisions and had a quick burst it made them seem faster than they were.

The guy he's been compared to - curtis martin is the perfect example of that, not a blazing runner but he made quick decisions and hit the hole with decisiveness and power