Hey so my SFML code works very well I just made a SpriteManager, and Im on OSX, my problem is when SFML is not the focused application or I get a new Message or a notification the SFML app slows down, a lot and I don't know why this happens. I've a very good processor and I can't solve this because the sf::Clock slows down too. Any ideas of how to fix this? Basically any activity from other app slows my SFML app down.