Sage mode chakra and bijuus place limits on your physical and jutsu capacity. Naruto never trained a day in his life when it came to physical abilities this is mangafacts. and After learning to handle different types of chakra he was lucky to be able to gain physical abilties from it. But since there is no more chakra for him to use naruto can longer gain any faster or stronger.
That's why in Boruto movie Sasuke was easily able to outspeed him and match his raw strength.
Sasuke became body and eyes at the end. Naruto is chakra.
That's why in Boruto movie Sasuke was easily able to outspeed him and match his raw strength.
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Sasuke became body and eyes at the end. Naruto is chakra.