Selecting an appropriate framerate for your screen transitions and animations will depend on your target system. You may think that selecting a higher framerate will make your animations run smoother, however, if your system can’t keep pace with the selected framerate, Storyboard Engine will drop the frames it can’t display in a timely manner. This will result in the engine having to do more work to achieve a lower framerate than intended and will look worse than originally setting a lower framerate that the target could handle.
A framerate of 14 frames per second will look good for the majority of simple animations. The results may vary, though, depending on what is being animated, how long it is being animated for, and what the content beneath the animated element is composed of. The best plan is to evaluate your design and animations on your target hardware, and tune your settings appropriately.