To make good wine, you must have good grape. If the grapes are good. What you need is time. To give it some time, you will get the good wine at the end.
So, I think some time (as long as possible) is good for him. 郎 朗 is a talented young man. I listened to his work first from the Chun-Wan. His skills impressed me. I also feel he overeacted a little bit, if you look at his body moving. Like I said, he is still young.