I think KK's overall play has been very good this year, save for the last 2-3 weeks. He hasn't been putting up as many points as we'd like, but he's shown more speed and balance, while being relatively strong on the puck.
Of course, there have been bad games, and those have been more frequent in the last few weeks, but he's never been a detriment to the team even in those bad games. Right now, he's having a hard time with the schedule and his confidence has taken a hit. It's a learning experience and I'm sure he'll learn from it.
Be patient and let him learn and improve. It might not be as fast as people would like, but his potential is still there.