Why does the Xiaomi 15 heat up under daily use, such as random playing and watching videos?

Several factors will make the Xiaomi 15 heat up under daily use, such as multiple APPs that are running in the background, high screen brightness, and software updates or system optimization.
If the Xiaomi 15 heats up under daily use, please refer to the following details:
1. When you just receive the new phone, upgrade the system, or change the phone, the phone will compile the newly updated code in a short period of time. This process will consume system resources and cause temporary power consumption and heating problems. This process will last for 1-2 days, which is normal;
2. After changing the phone, please update the software version. The software on the old phone is not compatible with the current Android system underlying architecture. Please update the software or uninstall and reinstall it.