For those looking for a better shower experience, get one of those giant rain showers instead of removing your restrictor in your current smaller showerhead.
Since water drops from the ceiling, the large diameter of the rain shower with gravity helps any low pressure woes. That's what rain is.
They don't need high pressure to work.
Restrictors in rain showers make your shower times last longer and you won't use up all the hot water in your hot water tank. Often there's actually enough hot water for the next person in line for a shower.
Water saving is less of an issue. The real savings is the energy used to heat your water tank.
Most big box plastic chrome rain showers are around 6" to 7" inches diameter, the Moen Ashville 21920 is 9" diameter. Anything large than that goes into the hundreds of dollars.
Try it. Keep the purchase receipt and you can return it and get a refund otherwise.