Temporary water pressure issue

[Chrusher]

In sink only, I have low water pressure for about 2 - 3 minutes and then the pressure is normal. Sprayer works fine all the time. No other faucet has this problem! Any thoughts and what my issue is?
Forgot to mention that once the water pressure comes up it will go back to a trickle as soon as I move the head.

[HayZee518]

delta type faucet, check the spring loaded seats. the sprayer comes off the bottom center of the water valve so pressure isn't directly involved.

[Redwood]

The diverter valve in the faucet is sticking keeping the flow of water directed to the sprayer instead of the faucet. Replace the diverter valve in the faucet.