The original Siegel and Schuster Superman stories are all-action. You know the sequence in Superman (1978) when Supes deals with the effects earthquake, including saving the train, saving the bus on the bridge, and building a dam? Or in Returns, when there'sa very similar scene where he flies around and saves a guy falling from a crane, then catches a falling sign, destroys falling glass with his heat vision and so on? That's what the original stories are like, one thing after another, rapidly.
What people forget is that Superman is not, and has never been, about super-powered fighting. There were no supervillains in the comics for many years at first. Superman is about Supes rescuing people seconds from disaster in the most spectacular, dramatic way possible. It's about constant, ever-bigger challenges being thrown at him and him performing miracles to win through every one.
It's the Twelve Tasks of Hercules. That's what Superman is about.