Try these things
1.download apps such as battery doctor, cm battery and clean master, not only do they help optimize your phone, but they also help overheating of the phone I.e closing over used applications.
2. Root your phone and try using an app called coolify. It simply cools down your phones temperature. Also reduces phone temp even more when phone is rooted.
3. Try to close apps, do not leave them running the background.
4. Try adjusting screen to auto.
If the issue is still occurring , leave a message.
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