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I'm making a game with a lot of asteroids. I noticed that my fps drops the more asteroids I add when running on the 2015 i7 Macbook Pro. That probably means that on less powerful laptops will lag a lot? My asteroids are similar to the ones in the game Asteroids, however I wanted them to have a somewhat realistic collision body shape that represented the sprite shape. On the Phaser p2 examples I noticed that the json for physics bodies' shapes were broken into smaller shapes like this { [1,2 , 3,4 , 5,6], //pretend that this is a triangle [7,8 , 9,10 , 11,12], //pretend this makes another triangle [13,14 , 15,16 , 17,18] //pretend this makes another triangle } //pretend if you put all of the those shapes together it would make another shape as opposed to just having it as one complex shape like { [1,2 , 3,4 , 5,6 , 7,8 , 9,10 , 11,12 , 13,14 , 15,16 , 17,18] //pretend this makes a shape } Which is better for performance? Also I want to have maybe around 200 asteroids in my game at a time, not to mention some other bodies as well. Should I reduce the amount of vertices of the asteroid's collision bodies? Would setting it to be a circle be less power demanding? The game works fine on my desktop, but that has a gtx 970 and I doubt most people who play my game will have that sort of power.