VS Code is the example I always use when someone is hating on Electron too - yes, it's possible to make slow, memory-hungry Electron apps, but VS Code shows it doesn't have to be this way. Honestly, VS Code is so performant you would think it was a native app.
I love VS Code but I wouldnt go that far. Sublime Text is far snappier - but I use VS Code anyway.
The real lesson is that performance matters but its not the only criteria for a successful app.