Project Zomboid

Project Zomboid

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[ExR]Kappa Jan 21, 2022 @ 6:53am
Low FPS Why?
CPU Ryzen 7 3700X
GPU Nvidia RTX 3070
RAM 64G

I play at 1440p normal pop (not even apocalypse) and i'm getting under 60 fps in big urban areas, 20 fps if i zoom all out. What the hell is going on?
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Showing 1-15 of 55 comments
Beard Jan 21, 2022 @ 7:19am 
Can you share your logs.zip file found in C:\Users\YourUserName\Zomboid?
You can use any file sharing website of your choice.
[ExR]Kappa Jan 21, 2022 @ 8:14am 
Originally posted by Beard:
Can you share your logs.zip file found in C:\Users\YourUserName\Zomboid?
You can use any file sharing website of your choice.

I'm gonna send it to you in the official discord in the "Mod support" channel my name there is "Kappa"
Last edited by [ExR]Kappa; Jan 21, 2022 @ 8:23am
Andy Mil Jan 21, 2022 @ 9:34am 
I laggging too in urban area
I asssume it is Zeds pathfinding
freak Jan 23, 2022 @ 1:26am 
I am having the same problem, even in the middle of nowhere, on a fairly beefy PC. 40fps at 100% zoom, 12fps at 200% zoom. Occasionally it "unlocks" for a few glorious seconds and I get way more fps, like a 100, but very quickly goes back to being slow. Both the CPU and GPU are chillin at 20-30% load. It's the same when playing solo, or when hosting a game for 2 friends. I don't have and never had any mods installed.

AMD Ryzen 7 3700X
NVIDIA Quadro RTX 6000
32G of RAM
Windows 11

I also tried it on a beefy laptop and it was very much the same. Both computers are running quadro/rtx cards and windows 11, maybe that matters.

I would love some help with this as my friends and I just discovered Zomboid and it's brilliant. I've spent hours now trying to fix this to no avail.

I shared my logs on Discord in the pz_techsupport channel and mentioned you Beard. Thanks so much for your help!
Last edited by freak; Jan 23, 2022 @ 1:32am
Stultus Jan 23, 2022 @ 3:36am 
Same here I have

AMD Ryzen 5 5600x
AMD Radeon RX 6600
16-GB 3600 MHz 15-cl Ram
Win 10 64-bit

I'm guessing this game is not optimised for AMD
Massive fps lag spikes
I'm getting better FPS for New World
KripTed (Banned) Jan 23, 2022 @ 3:46am 
I'm getting 144 fps zoomed in since I capped it there. I get 90 fps when zoomed out in some areas.

i7-11700k
32GB of RAM (3600MHz)
RTX 3080

I'm getting another issue with the CPU though. The game causes my CPU to run a little warmer than I'd like. I seen it go up to 81C. Most games haven't pushed my CPU past 65-70C. Except this one and PlanetSide 2.
Last edited by KripTed; Jan 25, 2022 @ 2:22am
W33B0 Jan 23, 2022 @ 11:38pm 
i have lags too but i cant join to INDI discord :/
Notslip Jan 24, 2022 @ 12:33am 
I had bad lag issues too but i fixed them by going into the setting and setting more ram to the game. The game by default only runs on 1gb of ram. To do this go to Project Zomboid the properties, local files, Browse, Look for ProjectZomboid64.json, open it with notepad and look for where it says "-Xms1024m", "-Xmx2056m" And change the numbers to 8192 to change it to 8gbs of ram and save it. You should be good then. I still have a little lag issues going by big buildings but other than that i have no issues any more. If you have questions about it you can add me and ask if you cant figure it out.
Stef Jan 24, 2022 @ 12:48am 
Can we assign 32 gigs? I have -Xms4096 -Xmx32726m but I get 10 fps. I think on my end it could be massive amount of items in my inventory with weight void. I can post logs if y'all want as well
W33B0 Jan 24, 2022 @ 11:41pm 
Originally posted by Notslip:
I had bad lag issues too but i fixed them by going into the setting and setting more ram to the game. The game by default only runs on 1gb of ram. To do this go to Project Zomboid the properties, local files, Browse, Look for ProjectZomboid64.json, open it with notepad and look for where it says "-Xms1024m", "-Xmx2056m" And change the numbers to 8192 to change it to 8gbs of ram and save it. You should be good then. I still have a little lag issues going by big buildings but other than that i have no issues any more. If you have questions about it you can add me and ask if you cant figure it out.


well i have still lags :D but thx for try help :D
zer.gzz Jan 25, 2022 @ 1:22am 
turning off blood decals , increase fps massively.. might help?
KripTed (Banned) Jan 25, 2022 @ 2:08am 
Originally posted by Yazz:
turning off blood decals , increase fps massively.. might help?

Yea but it's not like this game is graphically demanding. It should be able to get a consistent 144 fps even when zoomed out or with blood decals on.

The OP should be getting way more frames than that lol.

The only thing I can think of for the OP is that his CPU can't keep up.

Apparently the 3700X bottlenecks with a 2070 Super.

So imagine a 3070 OP.

"The 3700X is a $320 USD 8-core, 16-thread mid-range Ryzen 3000 series CPU. Out of the box, the 3700X, 3600X and 3600 achieve similar quad core speeds but the 16 threaded 3700X is 30% faster at multi-core computations than the 12 threaded 3600X. Comparing the 3700X to Intel’s i7-9700K shows that, when overclocked, the 3700X is 26% faster at 64-core computations but 13% slower for gaming and desktop (sub eight core performance). Unlike lower end Ryzen 3000 SKUs, the 3700X comes with a half decent cooler but AMD should not have bothered since a $20 aftermarket cooler is still quieter, easier to change, and better at cooling. With a Gammaxx 400 cooler we were able to maintain a 43.25x OC during our EFps tests. We had to use a fixed clock OC (rather than Offset/PBO) to avoid significant frame drops in Fortnite. With strong single-core scores, the 3700X should offer very strong gaming performance but in reality it is let down by its memory controller, which, although significantly improved over previous Ryzen iterations, still has limited bandwidth and high latency. The heavily hyped 3700X, paired with a 2060S, offers real world gaming performance comparable to the $80 USD entry level 4-core, 4-thread Intel Core i3-9100F. At $320 USD, the 3700X offers reasonable value to full time media encoders but general desktop users, gamers and even streamers should look elsewhere. Streaming with dedicated hardware such as NVENC or a separate stream PC will nearly always result in fewer dropped frames. The 3700X severely bottlenecks a 2070S: gamers should investigate the 9600K, which is both cheaper and faster. [Jul '19 CPUPro]"

But in reality. Your specs should still blow this game away. Anyone who has a rig in the last 5 years should.

Unless this game is just not doing well with AMD CPU's in general. So far most of the issues seem to stem from AMD users in this thread.
Last edited by KripTed; Jan 25, 2022 @ 9:36am
Always Neutral Jan 25, 2022 @ 4:19am 
I too have AMD cpu and my fps tends to be on the lower side. However, I have a relatively "mid-tier" PC. Nothing ground breaking.
Dango Jan 25, 2022 @ 5:12am 
I had the same issue. Two things fixed it.

1. Turn of the blood decals on your client. Under the settings change it to 0%
or what I did
2. Change the setting for blood decals on the server settings to be removed after 1 hour.

After doing number 2 (lol) my frames and I assume all player's frames went back to normal.

Edit: If you change it on the server it wont be instant. I suggest turning blood decals to 0% in your client settings first until the server setting kicks in. Then turn it back to 100%.
Last edited by Dango; Jan 25, 2022 @ 5:15am
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Date Posted: Jan 21, 2022 @ 6:53am
Posts: 55