I don’t have the exact particles used in that gif anymore (I adjusted them live for the gif) but there’s probably at least 1,000 particles on-screen at once there. 2 of those vortexes at once eat ~30 FPS (~15 without emitters in the meta particles), though I haven’t optimized it yet and the effects in the gifs so far have been exaggerated to make it more clear what’s happening.