Chosen Solution

Recently replaced battery, lightning charge port and screen with iFix parts and guides. Phone is charging slowly, won’t hold a charge and is hot to touch.

You may have a partial short in one of the circuits from the drop that caused the screen to crack that’s why it is getting hot and not holding a charge. If you haven’t got the equipment or know how it would be best to get it looked at by a repairer. To avoid more damage I would stop using it until it has been fixed.