Ohh, my apologies for the confusion. I was just using Go as a menubar/tray icon application (with some OS-specific bindings) and meant to say that its performance was excellent. No electron involved
I actually did something similar: business logic and most things written in Go, but the menu bar or tray icon done in native APIs like Win32 and Gtk. It was surprisingly very good experience overall. I have tried so many ways around it before settling for that.