[GAMEPLAY] Jayce animations cause lag

It was when I was playing Jayce in the most recent URF mode that I noticed a couple frozen frames and choppy gameplay that occurred when I used his abilities, particularly his Transform (R) ability. I was using the Full Metal Jayce skin, but I've since noticed the same problems whenever I am in a game with Jayce regardless of skin. It has happened every game I've played with him so far, and it doesn't seem to be dependent on whether or not the camera is looking at him. It only freezes for a couple frames, but it's still extremely noticeable, and quite disruptive given how regularly he uses his R.