It's not about hardware. My new android has twice spec than my 4 year old android phone. Yet, I'm still using my old phone for some apps. New phone has better spec, but it still has laggy scroll.
Our company migrated to vue.js, 6 months ago. Our complex app is messy with JSX, router, and new dev can't keep up with code. Now we start every new app with Vue.js. The gap between junior dev and senior dev comes closer. They can collaborate with less bugs, less problems and less time to develop.