"Can I test out of Levels in the Crown system? It takes a really long time to get to Level 5 on each skill."
Not currently, but you don’t have to get to Level 5 right away! We in fact recommend you don’t get to Level 5 all in one go. Level 5 is there to show that you have practiced the words in that skill a ton and probably don’t need further practice on it for quite a while. It’s completely optional. We definitely think we can do a better job of encouraging you not to binge on one skill, though, since that can feel really repetitive. And of course we take the blame for motivating you to love and aim for gold skills!
We are considering options for users to prove their existing knowledge on skills so they can be placed at the right difficulty from the start. We also want to make it more satisfying to complete each level (and not necessarily get all the way to Level 5).
Related: How do I practice individual skills?