I'm no expert, but I do have a corn snake.

How old is he???
You should only be feeding him about once a week, I would say at most every 5 days. What are you feeding him?

Holding him will not slow down his growth. I wouldn't recommend holding him after you feed him (we leave our snakes alone for about 24 hours after they've eaten). He needs time to rest and digest after a meal.

Don't try to rush his growth. Overfeeding him can do more harm than good.

What does he have in his cage? My corn snake likes to climb. Does he have anything to climb? Also he should have a heat mat under half of his cage. He needs to be warm to digest. Make sure it doesen't get too hot though. He should be able to get off the heat of he wants to, so only put it under half of his cage. Does he have a hide box? Ideally he should have a hide box on the warm side and the cool side of the cage.