Please tell us some basic information before asking for help:
Model Name: Asus Rog 5 (8/128)
Firmware Version: Version WW-31.0810.1226.91
Rooted or not: not
Frequency of Occurrence: while gaming
APP Name & APP Version (If your issue relates to the app): Apex legends mobile (1.0.1576.717)
In addition to information above, please also provide as much details as you can, e.g., using scenario, what troubleshooting you've already done, screenshot, etc.
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This is the multi-core performance on Android 11
This is the multi-core performance on Android 12
Please suggest a way to downgrade to Android 11