In my game, one the biggest performance costs in the profiler is Physics2D.FindNewContacts as shown in the screenshot. I don't know what this means and I can't find anything online. Can anyone explain to me what this means? My game has obstacles that are moved into the scene, and also collectibles. Since I read it was inefficient to create/destroy them, I have a pool of each that are disabled once they are outside the camera, and moved back into the scene when they are needed. I'm not sure whether this is related.