Apart from raw power like strength and top speed, there is also a boost to how quickly he can mobilize his power and control it.
The result is that his acceleration has become extremely fast too. He can achieve his top speed in a second or less now.
All he needs to do to achieve his top speed in such a short time is to ignite his life force in combination with contracting the muscles of his legs and let the resulting force propel him forward.
He can reach his top speed in 1 meter instead of running for about 50 meters. This kind of acceleration makes a blur of movement compared to someone at the first mortal coil.
His acceleration is not the only thing that got a boost. His defensive means have also improved.
He can harden his flesh now. This is due to the complete control that he has over his body and the tissues of his life seed that are growing all over his body.
