This whole thing is ironic, given React hoodwinked AngularJs devs with the claim that React was blazing fast compared to AngularJs. It technically was, because it didn't have anywhere close to the same functionality. Once it was fully fleshed out, surprise! not so fast.

I do take issue with your assertion that React functional components express the functional paradigm. They don't, because any component that uses useState, useEffect, etc., has a hidden bag of state off to the side, making it sort of object oriented, but without any of the decades of good practices that make OO tolerable.

https://medium.com/codex/everything-you-thought-you-knew-about-react-functional-components-is-wrong-baf2dfc4f6f