Sounds like you either your pump for the 3- point is getting weak, or your O-rings are bypassing on the 3- point piston.Not sure how your steering is plumbed ? Which pump . Most of the front mounted pumps only took care of the steering, the other pump took care of the loader and the 3- point.I would have to see it to confirm
Tommy
Affordable Tractor Sales Co.
“Your Jinma Parts Superstore”
http://www.affordabletractorsalesco.com