Think it sounds pretty normal, don't worry
Casie was out cold the day of her surgery. When I brought her home, she crawled into her little crate and plopped down without even turning around to have her head at the crate door. I had to poke her a few times to make sure she was still breathing!
Like Ezzy, she was more or less back to her normal self by the next day
Because the spay is a much bigger deal surgery than the neuter, I made sure she didn't run/play/jump for 10 full days so she could have a full good recovery! It was a lot harder for me than it was for her lol..