Page 1 of 1

Massive lag because Factorio can't take advantage of PC Power

Posted: Thu Feb 20, 2025 11:33 am
by Tiggy
While my computer could theoretically run four or five copies of Factorio at once, Factorio itself can't access enough of my PC processing power to run smoothly during the late game. In short: there always comes a point where I have created too many entities for the game to cope with using its budgeted % of my processor.

This results in massive screen-jerk lag when moving the player, especially when moving quickly (say trains etc). I also suspect this gets worse the longer you play for concurrently. Or in a Death World type game. The usual point this happens is a little past where the End Game for original Factorio was. Meaning that I am on the verge of traveling to a new planet and making the problem a lot worse.

I think this could be fixed if Factorio were allowed to allocate more resources. However, I don't know how easy this would be.

Re: Massive lag because Factorio can't take advantage of PC Power

Posted: Thu Feb 20, 2025 11:39 am
by Kyralessa
What are the specs of your PC?

Re: Massive lag because Factorio can't take advantage of PC Power

Posted: Thu Feb 20, 2025 2:40 pm
by Tiggy
Sure thing. Graphics card is kinda old, but I don't think that's the issue. My computer doesn't even ramp the fans when playing, and this is the second PC I've had Factorio on. Pretty sure I should not be seeing slowdown with only 4-5% processor usage.

I kinda undersold how many copies of Factorio I could theoretically run, honestly. 4-5% processor and 2gb of ram is nothing. There shouldn't be any slowdown, but it's now jerking the screen even when the character isn't moving. Which is approaching unplayability.
Windows 10 Pro
Processor 13th Gen Intel(R) Core(TM) i9-13900K 3.00 GHz
Installed RAM 32.0 GB (31.7 GB usable) DDR5
Graphics card: NIVIDA GTX 970
64-bit operating system, x64-based processor
02-20-2025, 14-37-12.png
02-20-2025, 14-37-12.png (3.88 MiB) Viewed 675 times

Re: Massive lag because Factorio can't take advantage of PC Power

Posted: Thu Feb 20, 2025 2:41 pm
by boskid

Re: Massive lag because Factorio can't take advantage of PC Power

Posted: Thu Feb 20, 2025 2:48 pm
by Tiggy
Ah. Okay. I guess I'm gonna have to cut down my drone usage. Maybe nuke a bunch of enemy bases.

Re: Massive lag because Factorio can't take advantage of PC Power

Posted: Thu Feb 20, 2025 4:51 pm
by Muche
See 68653 for which debug options might be useful for determining what part of your factory is causing it, so you may focus on optimizing it.