Probably belongs in off topic, or marijuana specific forum. Marijuana by itself has no muscle repairing qualities. You likely are feeling recovery based on your behavior exhibited due to the marijuana. Example....you eat more, rest more, etc..

You might want to post this in our special forum group about drugs; most of us don't fuck with even alcohol on or off cycle. Stay straight and embrace the post workout pain; it will let you know you had a great workout. Might as well have a few beers before working out or after.