Went from fun to unplayable

I bought this game about a half year ago. The game itself is excellent, but recently it started lagging and the framrate is horribly choppy. I’m not sure if it’s because Yosemite isn’t supported yet? All I know is that it’s unplayable now. I’m dissapoited that a great game has suddenly become unenjoyable due to lag. I tried changing the effects to their lowest setting, but nothing helped.

Hope there’s a fix for this.

Joey10594 about LEGO Marvel Super Heroes