If your Mi 13 is charging slowly, you can try the following solutions:
1. Replace the charger and data cable: try to use the original charger and data cable for charging, or change a new charger and data cable.
2. Clean the charging port: Use a soft brush and other tools to clean the dust and dirt in the charging port to ensure that the charging port is clean.
3. Turn off unnecessary apps: Turn off unnecessary apps while charging to reduce your phone's power consumption.
4. Restart the phone: Sometimes restarting the phone can solve the problem of slow charging speed.
5. Check the health status of the battery: If the above methods are ineffective, it is recommended to check the health status of the battery in a professional after-sales maintenance center, and the battery may need to be replaced.
I hope the above method can solve your problem.