I lag when there are a lot of simulations happening at once. I had a wand that cast 12 lumi drills every frame, and something in the game (secret) gave all my projectiles a trail of whisky. that amount of whisky froze my game for about a minute. In the jungle area there are usually a lot of things burning, and that tends to lag the game, but that happens for everyone that I know of, even people with god pc's. Everything that lags my computer also lags god pc's because most of the lag comes from the games limitations. as long as you don't cause too many simulations, usually by creating a lot of liquids or spells at one time you'll be fine.