This ain't what you're asking for but still, that might be a good place to start. Get a bigger well pump and improve your PSI and flow rate on the whole house, especially if you're trying to wash dishes at the same time you're running the washer or whatever.
Well, you asked. :)
Flow rate to the garden hoses, the washer, and bathtub is fine. I’ve even checked flow going into the faucet (I disconnected it and clamped o a section of 1” garden hose to the feed pipe. A gallon jug filled in under 15 seconds with the gauge at the well reading 45 psi. )
If I can spend $5, or even $20 on some sort of faucet mod, that’s a lot cheaper than a “bigger” well pump. I believe the present pump is 1 hp (shallow well pump). (And in any event, flow is set by what’s coming from the tank, not the pump directly, most of the time.)
I “could” set the pressure switch higher, and in fact ran it up to 55 lbs. today — it actually didn’t make a lot of difference. 40 lbs. is usually what’s recommended for home well systems, and I’ve been running 45 lbs.
What seems like 1000 years ago I took a fluid mechanics engineering class, and I very vaguely remember discussion of “mechanically” regulating flow rate over a range of pressures with restrictors. So, something like that probably happens to a considerable degree in these faucets. The “how” I don’t recall - that was almost 50 years ago...