I run about 20psi in the front 25rear in most conditions locally (Charlotte NC) in Pisgah I bump it up a couple PSI to protect my rims so maybe 22f 27 rear. Keep in mind though I’m running rims that are 10mm wider and high volume tires with fairly stiff sidewalls.
I’d guess your pressures are pretty good as they are. You can always knock them down one psi at a time until you start to get tire squirm. Lower pressures are helpful in soft conditions.