Please tell us some basic information before asking for help:
Model Name: Asus ROG Phone 5
Firmware Version:
Rooted or not: Not
Frequency of Occurrence: once a day
APP Name & APP Version (If your issue relates to the app):
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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The device become slow to response and unresponsive sometime. I get a notification System UI not responding