Mobile phone usage is stuck, and response slowly

Solutions:
1. Uninstall the optimized, power-saving and safety software on the phone, and close the infrequently used self-starting items.
2. If it is used in a high temperature environment, it is recommended to test it in a moderate temperature environment. The heat will cause the machine to get stuck.
3. If it is used in a low temperature environment, it is recommended to test it in a moderate temperature environment; Due to the hardware protection mechanism of the mobile phone's own system, when the operating temperature is too low, the system will reduce the core frequency of the processor (reduce the number of cores of the processor, reduce the frequency of the processor), so as to protect the hardware.
4. Settings >>About phone>>All specs>>click the MIUI version 7 times, enter the developer mode, and then enter the Settings>>Additional settings>>Developer options>>close window animation scale, transition window animation scale, and animation program length adjustment.
5. Tried to restore factory settings after the effective backup of the mobile phone.
6. If it is invalid, it is recommended to go to after-sales center for inspection.