I just purchased my first house. The lady I purchased it from was afraid of a few things, two of them being hot water and fast flowing water. The water heater was easy to adjust, but I'm scratching my head over the kitchen faucet.
It has very poor flow. The rest of the house is just fine. When I disconnect the supply lines from the faucet and turn on the valves, it flows just fine. I looked at the cartridges in the handles, they are just fine.
The lady told me that when she had the plumber install the faucet, she asked them to set it up to have very little flow. So I'm thinking, "restriction orifice? Adjusted cartridge for low flow?" I can't find anything that looks like it's adjustable or intentionally blocked.