No he wasn't. Quit making stuff up.
If you want proof that KCM Naruto's faster, then:
C: Lord Raikage's nerve transmissions and his reaction speed are on par with that of Konoha's yellow flash.....Impressive these folks are keeping up as well as they are. But Lord Raikage has manipulated raiton chakra to augment his reflexes! Not even the sharingan will be able to keep up with him. Plus, there's still...
Confirming that Minato's speed and reflexes are only on par with Base Raikage's.
Then we have this:
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Adult B couldn't even see him Flicker
and smash Kisame the instant Naruto reached Kisame as opposed to here:
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Minato appeared as a Flash yet Young B reacted in response to Minato being above Raikage and managed to perceive and intercept Minato's strike from a large distance before Minato could even complete his attack meaning that Young B had no problem reacting and perceiving Minato's actual speed.
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KCM Naruto is also described to move just as fast as Minato's usage of Hiraishin and we know Minato got his name from Hiraishin, not his actual speed.
Then, we have Raikage conceding that KCM Naruto was the 2nd person to ever dodge his fastest punch:
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And Minato was only capable of doing so through Hiraishin due to the fact that Minato, through Raikage's reputation, thought it was actually necessary to throw dozens of kunai across the battlefield.
Doesn't matter. Kisame wasn't even paying attention to him and his weakened condition prevented him from actually reacting to the attack in the first place.
Doesn't matter anyways because you have no proof that Minato can replicate that feat with his own speed.