React is terrible at reactive[1] UIs. You have to do a lot of work to tell react what to not rerender. Of course things generally work if programmers aren't car

React is terrible at reactive[1] UIs. You have to do a lot of work to tell react what to not rerender. Of course things generally work if programmers aren't careful, but the UI gets slower and slower over time as more features are added and more repaints are done. VDom is one of those arguable things, plenty of frameworks are faster than React w/o a vdom, and some frameworks are faster than React and also use a VDom. [1] Arguably react is not even that reactive, you have to manually wire up everything yourself.