Web and mobile application performance is a broad discipline. Here, when we speak of performance, we are specifically referring to the speed of the application in providing responses to requests.
A high-performance application will be able to service a large number of requests simultaneously, staying ahead of the incoming demand so that any short-term queuing of requests remains short-term. Commonly, high-throughput and low-latency go hand-in-hand.
For develop back-end service are use Node.js for server-side programing language, it is very lightweight and very fast. And for client-side, we use Angular (4.0), a speed & performance framework for web & mobile front-end development.
Angular is a platform that makes it easy to build applications with the web. Angular combines declarative templates, dependency injection, end to end tooling, and integrated best practices to solve development challenges. Angular empowers developers to build applications that live on the web, mobile, or the desktop.