Is this jet li when he was the "one"? Because he had super sonic speed and strength. He was moving so fast in his final fight that water droplets, sparks of fire, and an explosion were frozen in time to him. He was also punching through 10 feet of steel, concrete, and tanking explosions with no harm.
Just want to say that Jet Li as the "one" at the peak of his power could likely kill Dooku before he even knew what was happening.
The "one" during the last fight when their powers were heightened from their proximity to one another was amazing, time had no effect on them. Dooku no matter how fast still is restricted by time, the "one" would speed blitz dooku and chop him in half.