[whoisthemachine]

Felt the same to me. But I did learn of shouldComponentUpdate while reading the comments here, which for the author's scenario would seem to reduce computation time when using React exponentially. It's nice that React gives you an "advanced" scenario if you so need it for your uber-update-all-the-elements website.

[nemanja]

Here is a really good talk on React performance that may also be helpful - https://www.youtube.com/watch?v=KYzlpRvWZ6c