ROES is not entirely compatible with 4K displays which results in the application window and text being very small. Through a few easy steps, we are able to resolve this.
First, close the ROES Application if it is open.
Right Click the ROES application icon on your desktop and select Properties:
Switch to the Compatibility tab. Uncheck the option to "Disable display scaling on high DPI settings" as shown below.
Select “Apply” and then “OK” to save the changes. You are now set to start the ROES application up and view it on your 4K display!