Emudeck PCSX2 Slow Motion/Lagging :: Steam Deck General Discussions

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mnemonic 8 Feb, 2023 @ 8:47am

Emudeck PCSX2 Slow Motion/Lagging

So I just setup Emudeck the other night, and have been having issues with almost every game I've tried on PCSX2 (only a few). They all seem to have issues with lag. It's almost like the game is running in slow motion, and it shows fps drops from 17. The main menus seem fine but then go into gameplay and it drops. Or sometimes on certain stages like with SSX Tricky first few stages seemed fine then suddenly the issue occured. It's unplayable. Also NBA Street Vol 2 as soon as you leave the menus and the game starts, it drops to like 15 frames and is super slow motion.

I tried disabling SMT with Powertools, and messing with some of the PCSX2 settings. Haven't figured it out. Also no power restrictions are on, and I've tried capping FPS on deck to 60, and also setting it to unrestricted FPS. Did not fix either.

Everything is up to date, and the ROMS are running on built in SSD.
Not sure what to try, it is likely a setting with PCSX2 that I'm missing.

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Showing 1-14 of 14 comments

Juice 17 Feb, 2023 @ 10:22pm

did you ever figure out the issue? im having the exact same problem rn.

mnemonic 18 Feb, 2023 @ 3:49am

nope

Sup3rchunk 19 Feb, 2023 @ 2:57am

You need to disable SMT by using powertools with the Decky plugin tool:

https://www.reddit.com/r/EmuDeck/comments/xtdguz/ssx_3_through_pcsx2_solution_for_slowdowns/

hope this helps!

mnemonic 19 Feb, 2023 @ 5:40am

I've tried that.. look at my post

jhappychillmore 12 Mar, 2023 @ 9:29pm

Having the same issue. Well sorta, NBA Street Vol 2 has the same issue as yours. I got Bully to run fine and some n64 games also. Tried to tweak some settings within PCSX2 and it didn't work. So I restored settings back to default assuming Bully would at least run fine again, and it didn't. Now the n64 games are also slowed. I'm so confused. I think I will uninstall and reinstall everything. I don't know what else to try

Silver Bullet 9 May, 2023 @ 1:12am

Incase anyone is having the same issue, the same has happened to me and I remembered a few days prior I had set my refresh rate to 40Hz. Once I reset it back to 60Hz the emulator ran fine.

MisterCrow 9 May, 2023 @ 1:34am

If it's helpful to anyone, I found EmuDeck to perform extremely poorly on Steam Deck too. I got around it by completely uninstalling it and just installing RetroArch through the Steam store (outside of desktop mode). Then added the "DLC" for Mupen64 and all my N64 ROMs work much better (all at a stable 60fps).

Last edited by MisterCrow; 9 May, 2023 @ 1:50am

Haruspex 9 May, 2023 @ 6:42am

I experienced weird slow motion. Turns out I just had the built-in FPS limiter turned on. Press the "..." button and disable the fps limiter and the game should run full speed.

PopinFRESH 10 May, 2023 @ 6:48am

Originally posted by Harusp3x:
I experienced weird slow motion. Turns out I just had the built-in FPS limiter turned on. Press the "..." button and disable the fps limiter and the game should run full speed.

^ this is the issue. Most of the emulators don't work properly if you have either the frame rate limiter or the refresh rate changed. e.g. if you've turned the refresh rate down to 40Hz to extend battery life or if you set the frame rate limiter down to 15/30/45. Setting your refresh rate back to default 60Hz and turning off the frame rate limiter should resolve this issue. Having the refresh rate and/or frame rate limiter on can also cause audio distortion.

TheHosh777 18 Jun, 2023 @ 4:48pm

Originally posted by PopinFRESH:
Originally posted by Harusp3x:
I experienced weird slow motion. Turns out I just had the built-in FPS limiter turned on. Press the "..." button and disable the fps limiter and the game should run full speed.

^ this is the issue. Most of the emulators don't work properly if you have either the frame rate limiter or the refresh rate changed. e.g. if you've turned the refresh rate down to 40Hz to extend battery life or if you set the frame rate limiter down to 15/30/45. Setting your refresh rate back to default 60Hz and turning off the frame rate limiter should resolve this issue. Having the refresh rate and/or frame rate limiter on can also cause audio distortion.

I am just hopping in here to say that this fixed the issue for me. I limit my fps when playing Diablo 4, so when I switched to play some Need for Speed Underground, it was performing terribly. That is because I completely forgot that I had limited the fps, and setting it back to 60 fixed the problem.

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I'm the Cook 20 Jun, 2023 @ 5:30pm

Yes based on the description of the issue and the fact that you are emulating an older game, the cause is most likely due to setting the refresh rate below 60 hz on the steam deck or using some sort of fps limiter. Most developers back in the day would tie the game's speed to the refresh rate.

There should be a setting via the Deck quick menu that should allow you to set specific Refresh Rates per game/emulator, that way you aren't forgetting when you are playing back and forth between your emulator games and more modern titles.

#11

Shin_Otaku_Tensei 8 Aug, 2023 @ 12:50pm

I ended up having to set my frame limiter to 60. Having it set to unlimited made ps2 emulator run in 30fps but telling it to be at 60 seems to have fixed it. No more choppiness, running super smooth.

#12

UnsayingJam 6 Jul @ 10:28am

Originally posted by Silver Bullet:
Incase anyone is having the same issue, the same has happened to me and I remembered a few days prior I had set my refresh rate to 40Hz. Once I reset it back to 60Hz the emulator ran fine.

How do you change your refresh rate?

#13

Haruspex 6 Jul @ 11:04am

Originally posted by UnsayingJam:
How do you change your refresh rate?

Originally posted by Haruspex:
Press the "..." button and disable the fps limiter and the game should run full speed.

Select the lightning bolt icon after pressing the "..." button to see a bunch of different options, like frame limiting, performance monitoring, TDP limit, GPU clock speed, and so on.

#14

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Steam Deck > General Discussions > Topic Details

Date Posted: 8 Feb, 2023 @ 8:47am

Posts: 14