I'm having the same problem on a high DPI screen.
Icons and some layouts for dialogue boxes just don't scale or look right regardless of windows recommended scaling settings (i'm running 200% on a 14" 3000x2000 screen).
Resorting to Windows 10 compatibility mode and 'system' scaling makes it all totally usable and more like normal.
Would be good not to have to resort to this workaround, but for anybody needing a fix, thought I should share this.
Great work by the way.
Simon