"React Native actually performs the layout on a separate thread, so the main thread is as free as it can possibly be to focus on smooth animations

"React Native actually performs the layout on a separate thread, so the main thread is as free as it can possibly be to focus on smooth animations (it also provides flexbox for layout, which something that no other framework provides)" Interestingly - though perhaps increasingly less relevant - this is how BlackBerry 10 platform native QML-based applications work as well.