Interesting, didn't know they were using React. I thought they wrote their own framework. (Didn't they even have their own compiled-to-JS language at one point?)

In any case, "Just because X, doesn't mean it's fast", where X is a technology choice, is probably true for all X :)

The Chrome React Inspector picked up the React. Which was the basis for my assumption.

We're switching to React and moving away from simulation on the server. We're close to converting our core views and should be rolling those out soon. If you're interested in our perf problems, I would check out https://www.quora.com/Why-is-Asana-so-darn-slow-to-load/answ...