Scroll down until you see the icon. It looks like a game controller. Tap it.
: Prioritizes bandwidth and reduces system lag for a smoother experience. game turbo redmi 9a miui 12
However, buried inside MIUI 12 is a feature usually reserved for Xiaomi’s mid-range and flagship "T" series phones: . Scroll down until you see the icon
For your Redmi 9A running MIUI 12, Game Turbo is a built-in feature that optimizes system resources to provide a smoother gaming experience on entry-level hardware How to Enable Game Turbo game turbo redmi 9a miui 12
Typically hidden or "cut" from the Global/Standard versions of MIUI 12 to save system resources.