[Techwizz]

I had that issue in the earlier WoW clients. It doesn't happen on Linux (through WINE) but on Windows 10 I remember it did. I went into the compatibility settings and turned on "Disable display scaling on high DPI settings." I remember that newer versions of Windows 10 changed it a bit but I'm on LTSB and that fixes it for me It might still exist, they might have just moved it, but it really does fix it 100% if you do that.