OSX Always Opens 2 Clients, 1 which remains Unresponsive.

Just curious if any other OSX owners are having this problem. Essentially what will happen, is when playing a game I will notice my FPS will start dropping significantly. If I open my Activity Monitor on my desktop 100% of the time I will have a UserKernal which shows up as (Unresponsive) but still is sucking up % CPU causing FPS drops in my game.

If I close this it fixes the problem however it is a bit annoying that I have to do it essentially every time I open league. Any @riot employee have any info on this or has anyone else had this problem?

Kind regards!

Edit: I should also add that I have tried doing a complete reinstall of the client with no fix!