UI looks terriable when playing HDR video

Problem: When playing HDR video, the screen is brighter, the UI seems not only brighter but also darker! It makes the UI blurred, influence user experience! I also tried system photo app, it also has this bad case. I take photos to show you what the bad case looks like.

SDR:

HDR: Expect: The UI’s brightness fit HDR video, just like playing SDR video.

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system photos UI has the same problem video area is brighter,and the UI area is darker,seems gray

UI looks terriable when playing HDR video
 
 
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