If as the link suggests this is from 2018 a lot (!) has changed at least in the JS world and the Python world. Can’t speak for the others. Would be nice to see the underlying paper to see how the author defines the measurements, ie whose time is being measured, system (speed), development?
VS Code is great. I use it for JavaScript (usually Svelte or React) and Python (Django only). It is pretty resource-intensive if you are live-updating everything so don’t go overboard on plug-ins and shut down un-needed apps.