[ktpsns]

I had similar experiences with a Vuejs application where I rendered thousands of "reactive" elements. The Chromium JS engine had substantially better performance then the Firefox JS engine.

However, to be fair, this is a strong sign that as a developer, we are doing something wrong. If a JS application feels slow on an average browser in an average computer, it will feel slow on all slower computers. The usability will be crap. In this particular example, the frameworks are not suitable for such a large number of "reactive" elements.