RivaTuner Statistics Server is a hardware monitoring program, when you're running it at the same time with Overwolf, it may cause performance issues in your games (such as low FPS, mouse movement lag, Overwolf startup issues, freezes) as well as problems with Overwolf's overlay.
At times, it may prevent Overwolf from running altogether, in which case you might come across the following error message: "Whoops... unable to load Overwolf. Please restart to try again".
How to overcome this issue?
One way would be to close RivaTuner while you're using Overwolf in games, but if you don't wish to completely close it, you can update it to version 7.2.3 (or higher) and change the program's settings as follows:
- Set "Application detection level" to "Low"
- Set "Stealth mode" to "OFF"
- Set "Custom Direct3D support" to "OFF"
- Set "On-Screen Display coordinate space" to "Framebuffer"
The second way would be adding Overwolf.exe to the "Application profile properties" and changing the "Application detection level" to "None"