Amount currently reported appears to be wrong, probably because of the scalability issue (many new users from Nice Hash?).
For those who are experiencing locked up GUI, try this - try right-clicking (repeatedly) on the service icon for the WinMiner near the bottom right of the screen without exiting the app. For some reason, this "pushes" GUI update events and allow the app to "catch up". Only then the WinMiner GUI is responsive. For now, I've disabled CPU mining (Ryzen 1700) and that seems to help too...