I have a problem with low preasure with the hot water on my kitchen sink only, every other faucet in the house is fine..

I have a Delta single handle faucet Ball type, when I move the handle to the hot side I only get about 1/3 to 1/2 the water preasure I usually get when it is on cold.

I have replaced the valves inside thinking that might be causing the problem, that did not fix it.

I was wondering if any one out there knows what could be causing this issue with loss of water pressure in the 1 faucet