Actually the faucet may NOT be your problem. Has it been working properly in the past? Did this problem seem to just start recently?
Your problem might be your water pressure regulator. When these start to go bad (happens about every 10 years) houses develop "water hammer" from nowhere, faucets lose pressure, dishwashers don't clean well ...
This "good old boy" gives you a basic lesson in testing pressure and the regulator: