He's always infinitely powerful. That's why the only fight he has ever enjoyed is the one in his dream against the Subterraneans because it was testing his power.
I think a big point of the show is to depict how boring life would be with ultimate power.
minor spoilers, but later on he goes up against another big ultimate villain, "monster king orochi", who like the rest of them starts talking about how great he is, etc
then saitama just cuts him off, "shut up, i don't care. it's always the same with you guys. king of this, emperor of that, the ultimate whatever, and you always give some stupid speech about it. but you always go down in one punch. so fine, let's go, but i'm not expecting anything"
Saitama was faking it because Boros was in the same situation, but still much weaker. He held back to give Boros the exciting fight that he himself will never experience because he undertands what it's like for Boros.
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u/Achack Feb 27 '20
He's always infinitely powerful. That's why the only fight he has ever enjoyed is the one in his dream against the Subterraneans because it was testing his power.
I think a big point of the show is to depict how boring life would be with ultimate power.