Disable Dolby Vision

Well, how you watch your TV is your business and that’s okay but you should decide on what your goals are first; do you want the picture to be as accurate as possible or do you want it to look the way you like it?
If you care at all about accuracy, you will want to use Cinema or Cinema Home (it’s a little brighter than Cinema) when watching movies and you definitely don’t want to use Dynamic Tone Mapping.
If you want bright, that’s cool, crank up the settings to your desire or use VIVID or Dynamic Tone Mapping (which can produce some great results from time to time).

This video might be helpful:

And this: