What does Murky mean? LOL I'm assuming your not happy with the OLED? I for one keep looking at the Sony OLED's and think or better put know I'm moving in that direction probably this year. The Z9D is a killer LED but I'm just not a LED kinda guy. I never liked them and the Z9D is as close to a Plasma or OLED experience you can get with one.
I think you need to get that OLED calibrated or at least look up the calibration settings the professionl reviewers are using. I'm sure there's a best setting somewhere on the net. I honestly feel OLED is the best looking picture today. If someone offered to trade me a Sony 65 inch A9F or even a A8F for my Z9D I'd do it.