I recently bought a 43" VU Premium Android TV (43-OA). It has a 43" DLED VA panel as per the company. The TV does show superb blacks and punchy colors.

But I have a HUGE problem that is forcing me to return the TV: The TV shows a subtle flickering on all the scenes. This is much more apparent on flat grey content (e.g. YouTube app UI). I recorded it with a high-speed camera and it shows that the backlight is going from top to the bottom like old CRT TVs: https://imgur.com/R302wZv (1/8x speed).

Could it be a design flaw? Would there be any expert user-accessible settings, third-party apps (without root) that I can tweak and solve this? I tried playing with all the regular "picture" settings, but no luck. I'm okay if the TV consumes more power if at all that is a reason they're not turning on all the LEDs!.

P.S. If this is not the correct subreddit, kindly suggest so. :)