To be fair, Egan is as hard as it gets, and there are some sacrifices made (which I don't mind).
Ted Chiang, another short story writer, might be more your taste. He wrote the story that the film Arrival was based on. Also quite hard, but much more human than Egan.
Full length novels which I recommend are Children of Time by Adrian Tchaikovsky and Hyperion by Dan Simmons.
I may have lost your trust with Egan though.