To set the phone's charging CPU downfrequency, you first need to go to the phone's developer options and then find the CPU Settings. In the CPU Settings, you can select \"Power saving mode\" or \"Performance mode\
For more detailed Settings, you can use third-party applications, such as \"Kernel Adiutor\" or \"CPU Tweaker,\" which allow users to manually adjust the frequency and voltage of the CPU for better power savings. It should be noted that frequent adjustment of CPU frequency may affect the stability and life of the phone, so it should be operated with caution.
Mobile phone set CPU frequency reduction method when charging:
Open the phone Settings and click \"System\" to enter the system Settings menu.
In the system Settings menu, click the \"Performance Enhancement\" option.
In the performance enhancement option, turn off the \"Performance Optimization\" switch.
It should be noted that the phone will automatically reduce the frequency when charging to prevent overheating from causing damage to the phone.
Some mobile phones will provide the option of saving points in the Settings, after the selection will automatically limit the frequency of the CPU, if there is no relevant Settings, you can also find the relevant software to achieve