How long have you had him? It may be relocation stress from the big move. The can usually put away 30-50 a day, perhaphs thats even being conservative! You should offer as many as they can eat in a 15 min period three times a day. But like i said if you have only jusy got him he is prob getting used to his surroundsing, the new sihts and smells etc, it may take a few weeks to settle down fully.
Buggsy