Factorio Forums

Time spent when multi-threading things have nothing to do is known but no clean solution was ever found. Since the case of "they have nothing to do" is paired with "the map itself probably has nothing to do" it was never deemed important enough for additional complexity in not sending the threads to work on 'nothing'.

The slow-frames you're seeing are likely caused by CPU power-savings down-clocking the CPU when it's not working hard enough. This results in the threads taking longer to start, do nothing interesting, and stop. Or, when switching from not-a-lot-happening and then an intense frame happens the CPU has to up-clock which takes time and you see a small spike. There's nothing the engine can do about this since it's a user power setting and up to the player if they want to disable it or not.

thanks for your quick response, he already has the "high performance" power profile. Is there any other settings he can tweak?

ness056 wrote: Mon Jun 15, 2026 7:15 pm thanks for your quick response, he already has the "high performance" power profile. Is there any other settings he can tweak?

if you have a ryzen x3d cpu with multible ccds like the 9950x3d "high performance" is bad, in general if you have a ryzen x3d you want balanced setting for best performance, and make your are using MS GameBar and set "Remember this is a game" setting