Can some frameworks be too much for your project? Well, the practice shows that they might be. Between Ember and React, which one suits you the most?
Ember is inferior to React in speed, which is justified by its nature: it is a huge data library. React, being a lightweight framework, is faster. A definite plus when using Ember for large-scale applications with regular updates is that changes are detected more slowly.
Thus it affects the rendering, making it super slow for the first time. As there are numerous components, Ember deals with the most complex functionalities, and the performance metric differs from others.
A super-fast performance of React is achieved due to its lightweight. It is designed with a complete package of lean architecture. Its component-based workflow rounds off the toolset for developing applications requiring native-like features. Its leaner architecture, reused components, and JS webpage rendering allow quite a good speed for react applications.
The creators say React can quickly get a user interface that does not require special efforts to optimize performance. Well, it's a fairly good performance library. Learn what developers offer to accelerate React-based applications in this article:
https://www.aimprosoft.com/blog/ember-js-vs-react-js/#ember-vs-react-performance-comparison