I take care of 35 imacs at a school and photoshop is often freezing.
The students login with their active directory accounts and work with files LOCALLY.
Do you know if this setup causes problems?
By the way, I was running a setup from a few years going back to 10.8 when we bought the macs to the upgraded 10.9. We often installed/uninstalled apps, maybe it was causing issues, but I am doing a clean install right now.
If you know of problems with PS under mac using AD accounts please let me know!