I know it's a defacto complaint to leverage against Electron apps, but memory usage notwithstanding, I've never run into much lag issue on any major Electron app.
The Electron Framework.framework it contains is 400+ MB alone. I don't understand where you come up with your 90 MB figure?
Perhaps this file is just the installer and the actual system files are much larger? Or maybe your 400MB figure comes from a bloated install? Just speculating here.
It's really fucking obnoxious that somehow a goddamn web app in a wrapper is managing to cause system wide hangs.