Your pressure is not that bad to worry about.
Your pressure is pump volume minus all the internal "leaks", the pressure is lower all at rpms now because the bearing clearances are slightly larger.
It was probably on the tight side of clearance when it was built.
Pressure without flow is more than likely to fail than higher flow from lower pressure.
10000 miles in 10 years, how many
oil changes has it had?
Your bearings could be wearing out chemically from acid in the
oil.