title: Navigation component with viewpager performance issues
body: <p>My situation is the following: I have a <code>HomeFragment</code> which contains a <code>ViewPager</code> that has 3 Fragments (one of those has a child Fragment aswell). When I now navigate away from the <code>HomeFragment</code> and try to go back, the transition takes 1-2 seconds and is very laggy, probably because all 3 Fragments inside the <code>Viewpager</code> get restored. Is there a cleaner way to do this with the Android <code>Navigation Component</code>?</p>