I think the scaling is fine. jujutsu kaisen also has some really insane strength feats in the manga if we go by statements. Yuki has a technique that is planetary because she can create a black hole. Kenjaku can tank that technique point blank. And we all know Gojo scales far above kenjaku. so don't worry about it. Power scaling wise gojo should be top 3 in this verse. Add in the fact that everyone will underestimate him because they don't know who he is. well you get an unbeatable character

do the time skip