In terms of adhering to physics, the super feats don’t necessarily have to pass the scrutiny of a scientist or engineer. They just have to seem plausible enough for the average person.
The average person used to not care. Superman: The Movie managed to be one of the highest grossing movies of 1978 despite depicting Superman stopping an earthquake by pushing a tectonic plate. Why has that changed? Why have people become such killjoys that they expect fantasy to be realistic?