Increasing pressure will increase flow. Increasing the orifice size by using a high flow regulator will increase flow without increasing pressure.
I have my Watts regulator set to 65 psi.
Winnebago tests the system to 85 psi and the faucets are supposed to be rated to 85 psi.
The unregulated pressure at my house is about 135 psi and the house Watts regulator is set to 65 psi as recommended by the technician that replaced the one that had died sometime before I bought the house.
When we first moved in and the hose from the house to my motor home swelled way up I figured there was a problem and a pressure check on the outside hose bib confirmed it.
The house faucets all survived the high pressure even though they are rated for 85 psi max.