I'm working on web-app based on Angular 2. In Angular 1 we had two-way data-bindings, so services could be easily connected with page data using $scope (if we change something in service, data will be automatically updated).
In Angular 2 we have EventEmitter, I thought it's like Angular 1's $scope.$broadcast, so there could be performance issues with this.
What about performance of EventEmitters? Do they slow down application?