Sasuke is without a doubt the fastest shinobi alive. Only haters deny
If not
on par, godruto's (RSM) body flicker tech. is the fastest, but there's no doubt that godsuke's is closing up that gap and really fast at that, a feat attesting to his words to the former.
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However, this goes without a doubt that godsuke compliments his body flickr tech with his teleportation/space-time justu (Amenotejikara)
Here's both gods at (the movie at least) their fastest a sec before hitting Momo.
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A millisec before the first impact, we have this.
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And here, godsuke compliments his body flickr,
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with Ameno.
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Same here
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And here
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I also think every other living shinobi pales in comparism except for eight gates might guy.

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