What benchmarks? You say all the benchmarks but provide no links and I know for a matter of fact that your statement is simply not true. Also, be wary of benchmarks, they tend to optimize one framework while leaving the other ones not optimized. Also to note, I&#x27;ve used React for very complicated things, even having to optimize under the 50mb limit in one tab and the performance did not slow down as you claim. I&#x27;ve been using React on a production app &gt; 1 year. I used Angular 1.x before that.<p>And the only way I see every change detection being O(1) is using something like Immutable js or serializing the &quot;state&quot; and comparing strings.<p>Just by this blog post alone, it seems the Angular community is quite split on what they want. Wouldn&#x27;t it make sense to just maintain Angular 1.x and start on a new framework, which would basically be Angular&#x27;s version of React and Ember, with a new name. Performance difference will be negligible.