Why does the screen refresh rate drop from 90Hz to 60Hz when Xiaomi smart phone playing games?

Question

Accepted Answer

If the refresh rate of your phone drops from 90Hz to 60Hz when playing games, please refer to the following information:
1. When the phone detects high temperature or low battery, it will reduce the refresh rate to reduce power consumption;
2. When the CPU is overloaded due to the game being too large or poorly optimized, the system will actively reduce the refresh rate to ensure smoothness;
3. Some games may not support running at a refresh rate above 60Hz.