Factorio Forums

What did you do? Playing with a Friend multiplayer with mods. Huge FPS Dropps happens every few minutes.
What happened? My FPS dropping from 60 down to >20 but the UPS remains at 60
What did you expect to happen instead? Smooth Gemplay, when i do host the game the drop doesnt happen. Also at my buddys client no FPS drops are happening. You could say, let just ur mate host the game but he has sometimes the problem, that he cant join my game and we both have to multiple times restarting our game.
Does it happen always, once, or sometimes? The FPS drop happens every 3-5 Minutes for 10 seconds. It happens regardles the circumstances.

Info:
Latency: 16 ticks
buffer 1/5/0 to 42/0/1
jumps: 0 to 17

See 68653.

Im sorry, maby i have misunderstood something. The topic u posted is bout low ups but i dont have that problem. Only the fps are dropping. The fps wont drop when im hosting.
Also, when i do host my mate doesnt have the problem. Its only when he is hosting.

elCapitano92 wrote: Sat Mar 28, 2026 2:30 pm The topic u posted is bout low ups

No it isn't. If you provide the information as requested I'll take a look.

Ok, got multiple Screenshots and log file + savegame in that rar file

Hello, when FPS drop in a multiplayer game but UPS don't (and you are not the host), it usually means that your factory is too large to simulate and there is not enough time to prepare a frame before the next update occurs, so some frames are dropped. Extended biter fights are demanding on performance, for example. You could tell the host to slow down the game using mods or console commands.

We do now use a gameserver, fps Drops do not happen again even with larger bases now.

Any clue why it is now working via gameserver?

elCapitano92 wrote: Tue Mar 31, 2026 11:04 am Any clue why it is now working via gameserver?

The new server is slower.