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Re:A SoundCloud client in React and Redux by fpgaminer on Sunday June 12, 2016 @09:44PM (#11891279)
Confirmed; just tested on my machine (Firefox, i7-3632QM @ 2.2GHz) by mashing on the keyboard. CPU spikes to 100% on one core and results in stalling.

In contrast the React+Redux app I'm working on uses the local Controller/Component state method and mashing on the keyboard there gave ~20% CPU.

I never would have imagined that Redux Form would lag on a desktop/laptop. I was more concerned that mobile performance would suffer. It's kind of impressive that a simple form can lag a desktop browser...

Re:A SoundCloud client in React and Redux by groovytime on Sunday June 12, 2016 @09:59PM (#11891324)
He has redux dev tools enabled, hence the performance issues.
Re:A SoundCloud client in React and Redux by Koromix on Sunday June 12, 2016 @10:32PM (#11891399)
Indeed it behaves much better on a demo I found elsewhere, sorry for the inaccurate comment.