I had an accident some years ago when a guy ran into the side of me. I claimed on his insurance and they sent an inspector round to examine my car. The first thing he did was to check my tyre pressures.
Your pressures (front 2.3 bar (33 psi) and rear 1.8 bar (26 psi)) are correct. If you were to change them to any significant degree your insurance company might not pay out in the event of an accident.