By default, AngularJS sites are slower than they need to be. Most AngularJS sites are bogged down with multiple HTTP calls on the initial page load. Multiple HTTP calls result in slower response time, and higher heroku bills. Sites that load slow can see users flee your site, especially on Mobile connections. AngularJS apps have two low hanging, easy wins for reducing HTTP calls: ng-init for preloading JSON, and preloading your templates using the asset pipeline. http://www.angularails.com/articles/how_to_speed_up_your_angularjs_rails_app