Why does my telephone’s brightness dim throughout ultimates in my recreation? (Galaxy S23)

Two months in the past, I observed my brightness would at all times dip when performing ultimates in my recreation. They did are inclined to stutter just a little bit, and though they now play easily, I don't fairly just like the impact because the display will get manner too darkish for my tastes. I'm questioning if it's one thing I can activate/off or if some Android replace made it obligatory to assist defend the CPU. Does anybody have info on this function?