On big project, it becomes impossible to optimize the DOM interaction yourself, so you start to do very inefficient operations for sanity&#x27;s sake. React on the other hand abstract that for you.<p>I had a project with Angular where one page was really slow. I re-implemented it with backbone &#x2F; jquery, it was a bit faster but really hard to read and maintain. With React, the code was simpler AND faster, which I was really surprised about.