"I have found a workaround that might be helpful. Changing the high DPI settings to "Override high DPI scaling behaviour. Scaling performed by: System" seems to fix the rendering issues, however the downside is the application can look blurry.
This setting is located in the Compatibility tab of the SmartConsole R80.20 desktop shortcut. I have tested this on a workstation with a 4K monitor and a laptop that can only do 1080p, but must have a high DPI display. In both cases, the Gateway Network Management screen rendered normally after overriding the default high DPI scaling behaviour."