Naoya or kenjaku who faster

Argument for naoya

He can blitz choso multiple times and overwhelmed him so badly that he can't even use his cursed technique. Choso could only react to naoya when he focus frss only on his perception. This is a naoya barely trying btw. Choso could atleast somewhat react to kenjaku and could use his cursed technique against him. So naoya is better speed wise.

Argument for kenjaku

It's true that kenjaku didn't overwhelmed choso speed wise as much as naoya did, but that can easily be explained by kenjaku just holding back. Kenjaku could react to piercing blood in even point blank ranges, which proves he is faster than piercing blood and even naoya top speed. So kenjaku is clearly faster.

I think it's reasonable arguments for both sides so I will let you decide who you think is faster.