Superman grossed $58,450,000 on its second weekend domestically, dropping 53%. Other recent comic book films' respective drops:
>Thunderbolts*: -56%
>Captain America: Brave New World: -68%
>Kraven the Hunter: -72%
>Deadpool & Wolverine: -54%
>Madame Web: -61%
>The Marvels: -78%
>Spider-Man: Across the Spider-Verse: -54%
>Guardians of the Galaxy Vol 3: -48%
>Shazam! Fury of the Gods: -69%
>Ant-Man and the Wasp: Quantumania: -70%
>Black Panther: Wakanda Forever: -63%
>Black Adam: -58%
>Thor: Love and Thunder: -68%
>Doctor Strange in the Multiverse of Madness: -67%
>Morbius: -74%

And other Superman related films
>Justice League: -56%
>Batman v Superman: Dawn of Justice: -69%
>Man of Steel: -65%
>Superman Returns: -58%

What if it sucks?