Just checked the conversion for 1.9 bar to PSI; and its 27.5 PSI

I go with 34 PSI in the fronts and 36 PSI in the rears.

Your pressure seems a bit soft, even if its factory spec, but have the wheels changed from factory? At your pressure, it would seem a lot different. Another bump up and it would feel even better, although might feel a bit harsh initially. Would definitely consider 32 PSI anyways.
Less inside wear, less resistance on motorways too which gives better fuel economy (even though I know thats not a major concern for anyone on these forum :P)