I have enabled the Horse Combat ESM, so I have yet to see if disabling that will do anything. I only use the Deadly Reflex Combat moves esp.
I only use the official DLCs, Shivering Isles, and Midas Magic. I have tested to see if it freezes without Deadly Reflex, and it seems I can pick up things and punch them just fine.
EDIT: Nevermind, I simply used the OMOD version and now nothing freezes