VSCode's plugin model is pretty impressive and tends to isolate the side effects of poorly performing plugins (including language/autocomplete, etc)... so that the main editor tends to be responsive. There should be room to tweak, but I'm pretty happy overall. Way better experience than any full IDE I've tried... I only hope they keep it that way as features come in.

Also, as an Electron app, there is a node element, so compiled components are already an option.