Users will appreciate your applications better if they perform well. You can benefit from lessons learned over the last year to optimize the performance of your Windows Phone apps. In this sample-filled session learn how to create responsive Microsoft Silverlight applications for Windows Phone. Learn about common performance bottlenecks, with a focus on how to optimize startup and reaction time. Also, learn which controls are more efficient than others and why background processing is important in certain application scenarios. To help you improve your app’s performance, you can make use of the built-in frame rate counters and additional performance analysis tools. In addition, learn how to assure that animations inside your application run fluently.