My only real gripe against OLED is the extremely fast pixels. I've mostly gotten used to it now, but at first I was quite annoyed when watching movies or series, especially when it was filmed with little or no motion blur, with American Gods as the best example. Quite high contrast grading in that one and a bit sharpened as well, so HDR in 4K with no motion blur made it so overly "sharp" that I just stopped watching it.
Most TVs do have motion smoothness interpolation that you can use, but that instead makes it look like a soap opera, so instead I'd like to have a mode that "fades" between frames, emulating slower pixels, or an anti-imaging as in DACs. Because that's all motion blur is, antialiasing.