That's possibly my biggest grief with Edgmium. Chromium's (SDL-based?) text renderer is terrible on Windows compared to DirectWrite (the Window 8+ text rendering engine that replaced the crumbling GDI+ in the Windows OS interface and UWP apps but not ancient Win32 tech debt).
(I suppose it's also my biggest hope for Edgmium if they can somehow magic together a switch to DirectWrite on Windows, maybe that'd better the font rendering across Electron apps too.)