iPhone 13 Pro Slo-mo 240 fps problem

Hello there, I would like to raise the issue of slow motion video in the iPhone 13 pro again. Let me remind you that when using this mode, the video strobes and records jerky slow motion video. But this happens a week after the reboot. That is, for a week the phone can record everything normally, but at some point these twitches will begin. I am concerned about one question. This phone is generally more difficult to work with and you can see it through the 240 fps mode, or it's a software failure of the mode/camera itself.