Why does the new POCO F7 Ultra overheat when downloading updated software or using Mi Mover APP?

Switching from an old phone to a new one involves much data transmission. When downloading, updating, and installing applications, the CPU frequency will be increased to speed up the installation. The AI smart engine on the phone will process the data accordingly to facilitate quick use in the future. This process will consume system resources and cause short-term power consumption and heating problems. This process will last for 1-2 days and is normal.
The software on the old phone is not compatible with the current Android underlying system. Please update the software or uninstall and reinstall it.