If Overwolf or your installed apps appear blurry, grainy, seem to refresh or flicker whenever you click on them (See examples below), the issue is most likely caused by a setting called Hardware Acceleration.
The good news? It's an easy fix!
How to Fix the Issue
Just turn off Hardware Acceleration in Overwolf:
Open Overwolf Settings
Go to the General tab
Toggle Hardware Acceleration off
Restart Overwolf to apply the change
That’s it!
Examples
Can’t Disable It Through Settings?
If you’re unable to change the setting from within Overwolf, simply download and run the file attached below, then check if the issue is resolved.
If you need any additional help, please open a support ticket.