The water pressure from the angle valve is normal, but the faucet comes out of the water
Then compare the inside and outside angles of the new and old angle valves. Perhaps the inner diameter of the new angle valve is relatively small, and the water supply to the same tap is a little smaller. Or, when the new angle valve was installed, the tape was blocked and a little waterway narrowed the waterway
Check between the angle valve and there is no place to Water Leakage
Then you take off the tap and see if the water is normal? The elimination method comes step by step
The angle valve comes out, that is, the tap is clogged inside. Take it apart and rinse it