After updating (v 23.5.3) Photoshop to Photoshop 2023, I noticed that saving files was much slower than the older version. I tested several files, and the older version took 2 seconds and the new version took 6 seconds. I uninstalled the 2023 version and will wait until a bug fix update to try again.
Mac OS Monterey
Boot drive where Photoshop is is Mac M1 Studio, files saved to external SSD drive