If we cast / mirror the Xiaomi's screen to a monitor or TV, we can also enjoy games to the fullest, and the Game Turbo function helps us here, which for example ensures faster transmission and restricts selected system functions to ensure smooth gaming.

Note: We can add games separately to Game Turbo.

Android 10 (MIUI 12.0)
Step 1:  Open the  Settings
Step 2:  Tap on  Special features
Step 3:  Tap on  Game Turbo
Step 4:  Open the  Settings
Step 5:  Enable or disable  Game Turbo
  1. Open the Settings
  2. Tap on Special features
  3. Tap on Game Turbo
  4. Open the Settings
  5. Enable or disable Game Turbo

Xiaomi Instructions