1. Optimization of performance in receiving messages between client and server.
2. Optimised display features.
Explanation
1. Earlier versions of Asp.net had lack of performance of message transfer between client-server communication as server response time was lagging behind .this problem was rectified by the concept of angular js. a new version of HTML framework. where WEB API was the server side.
2. HTML display features had optimised level in Angular JS both in terms of fastest and accuracy in message transferring performance and display characteristics in the WEB BROWSERS. WHICH EARLIER VERSIONS OF HTML LACKED.