Lightning fast User Interface
to help your client feel the flow.
A good application is one that helps the user. Properly written, optimized source code allows today's modern browser technologies to spread their wings.
We don't force the user to wait senselessly where it is not necessary. Sometimes, however, waiting is unavoidable – for example: for database reads/writes, to perform operations on the backend, or when a network traffic is heavy loaded – then the frontend takes responsibility for the whole user experience. Proper manipulation of loaders, transitions, or micro–animations makes the application seem to have a flow and anyway – it feels to runs smoothly.