HDR picture like on xbox Series x always darker!

I don't even start with the usual problems like in a game. Everything is great. In the next game you get on the empty tour. No hits. Or in games where AI absolutely wants to win in franchise mode. This can not be stopped or the decisive pass always goes anywhere else and never to the player. No, what I want to say today, what is going on with your HDR again even now on brightness 70 and contrast on 65. The picture is darker than ever, usually it goes well in third one and becomes systematically darker.