50'' TV with good motion handling

[Krynoid-Man]

I have a currently Hisense 3B7500UK but it has some issues with motion. When there's fast movement there's a distracting motion smoothing effect where anytime there's fast motion there's an artificial looking blurry trail following (and in dark scenes it's a horrible looking green colour) and I've gone through all the settings, but I can't seem to turn off. The Dolby Vision doesn't work properly on some of my discs either.

Because of this I'm wanting to get another TV which handles motion much better. It's going to be in my small bedroom so size wise I'm looking for a 50'' model, preferably with Dolby Vision.

Does anybody have any recommendations?