As a user, I want to have a fast responding user experience without delays and lagging

[jm9e]

We should look into more advanced change detection mechnanisms that Angular provides.

See https://blog.angular.io/3-tips-for-angular-runtime-performance-from-the-real-world-d467fbc8f66e for example

See also #17

[td5r]

Will be done with https://github.com/Bitspark/slang-ui/pull/66