we are talking 30fps here. Can you notice a difference? I am not the most sensitive person to notice latency, but I can feel it when using the TV or the monitor to some extent, and I didnt notice a difference between Game Mode On and Movie/Filmmaker Mode picture settings (Movie I set it at max brightness for HDR content and Filmmaker Mode is the same as movie but I set the Brightness to 19 to save energy and general use).If only I can stand the latency...
IIRC is here's only 1 brand, Panasonic that allows motion interpolation in game mode.
Also, I kinda admire people who can see the black frame added by BFI or flickering. I haven't noticed any of that on my TV. Which is noticeable for me though, is how BFI decreases the display brightness.