Angular.js and the Rendering Performance Choices

Angular.js used to be mentioned by developers by a little bit of slow rendering performance. Any new web framework or rendering lib should not do the bad perf that Angular.js had. The issue is:

It's not about parsing component

• Either by HTML string
• Or recursing the DOM tree of component

The slow perf in Angular.js was related to the bindings of values on UI with values of variables, properties in JavaScript. Imagine of a component displaying hundreds of rows that each row is rather complex and having a lot of values to display. Angular.js puts hundreds times the bundle of values in each row to a list of value bindings as events to checker loop (or JavaScript event loop?), and it's flooding the only thread of JavaScript, which makes JS busy.