Everyone goes on about performance but unless you are doing something extremely complicated or you have fucked stuff up in an extremely bad way, the actual part

Everyone goes on about performance but unless you are doing something extremely complicated or you have fucked stuff up in an extremely bad way, the actual part of React apps which is rendering to vdom and diffing to dom, in my quite long experience with it, is very rarely a problem, and not enough to warrant a stateful imperative approach.