im not sure. people saying that he will just blitz kakashi and beat him are wrong though. narutos speed feats are inconsistent.
kcm narutos regular speed=V1 Ay
kcm narutos shunshin>V2 Ay
if narutos speed was so effective then he wouldve just blitzed tobi before he could even turn on his intangibility like minato did.
both of them could beat eachother.
kcm narutos shunsin>V2 Ays speed.What? KM Naruto is faster than A. Minato never blitzed Tobi.