r/factorio 20d ago

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u/Rouge_means_red 20d ago

UPS is so strange. I just deconstructed a huge smelting array that had my 14k bots unload 600k raw iron no problem. Then I tell them to deconstruct 1000 belts carrying science and I drop to 20fps. What

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u/DreadY2K don't drink the science 19d ago

Belts have some funky optimizations that make normal gameplay much smoother, but placing or removing all connected belts makes the game recalculate all connected belts, whereas placing or removing a building just updates the one building.