Someone told you to join clubsub from one of the facebook groups right? Welcome to the club.
23.4 psi does seem pretty high, however I don't claim to be an expert on this what so ever. If your tuner says that it isn't struggling, afr is fine and intake temps are still reasonable then probably not too much to worry about.
Perhaps have a think/talk with your tuner about what you really want from the car. Whether you want to back it down a bit for an under stressed reliable package or whether you want it to be as fast as it can be, like it seems the tuner has set it up.