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Can anyone help?

So I have two machines:

1) Weak laptop - Pentium B960 with Intel HD 2000 video. Runs on Windows 7. ePSXe runs flawlessly and silky smooth.

2) Gaming PC. Core i7 7700k and Nvidia GTX 1080. Runs on Windows 10. ePSXe has bad framepacing (feels like frame skipping). Especially noticeable in 60 fps games, like Tekken 3. Framerate stays solid 60 fps though, checked via Rivatuner OSD. Same plugins as on the laptop, same settings except window resolution (internal res is the same - standard/low). Tried compatibility settings, tried disabling fullscreen optimizations, tried different vsync settings via Nvidia control panel and in the GPU plugin settings - nothing helped.

How do I fix that? At first I thought it is DWM related, as I have it disabled for on laptop, but after I enabled it, laptop still runs ePSXe smooth. Also there is no way to disable DWM on Windows 10. On gaming PC ePSXe stutters both in windowed and fullscreen modes. Also checked Tekken 3 arcade version via MAME for a comparison - runs fine.
 

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deep-space demon
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Gaming PC. Core i7 7700k and Nvidia GTX 1080. Runs on Windows 10. ePSXe has bad framepacing (feels like frame skipping). Especially noticeable in 60 fps games, like Tekken 3. Framerate stays solid 60 fps though, checked via Rivatuner OSD.
Yeah because the software detects the framerate of the video output, not the game's own framerate on the emulator.

How do I fix that? At first I thought it is DWM related, as I have it disabled for on laptop, but after I enabled it, laptop still runs ePSXe smooth. Also there is no way to disable DWM on Windows 10. On gaming PC ePSXe stutters both in windowed and fullscreen modes. Also checked Tekken 3 arcade version via MAME for a comparison - runs fine.
Copy these settings and you should be good. Adjust as needed.

Text Font Document


For graphics card vram type in 1024- the dropdown menu doesn't have 1024 listed.

Also what might help is changing the sound latency to low in the sound settings

Hope this helps
 

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something to try ... make a new profile on the win 10 machine and try running it from there....(or even boot into the admin profile)... I had an issue running xebra , it was choppy and stuttered like crazy, but ran fine in a new profile... never did resolve it, something installed on that one profile was interfering
 

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I haven't found the exact cause of those slowdowns on ePSXe after several months, but it's actually something in the folder where ePSXe was installed or copied. I recently found this solution by myself:
-Get a zip of PSXe executable (download it if necessary).
-Extract the zip file contents into a new location, don't extract it into the same folder where you had installed or copied the ePSXe file that is having slowdowns (can be extracted into another folder in the same route the previous ePSXe installment is located but with a different folder name).
-Copy the content of the following subfolders from the old ePSXe folder into the new one: bios, cheats, plugins, snap and states.
-Test the new installment of ePSXe, it should work as smoothly as desired.
-Erase/wipe/delete the old ePSXe folder.
-Copy the new ePSXe folder into the route the older ePSXe executable had.
-(needed if you have a Windows shortcut to ePSXe) Rename the copied folder with the name the older ePSXe installment had.
And that's all, open ePSXe again and enjoy.
 

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Sorry for reviving an older post, but it was necessary due to this thread appearing as one of the first Google search results for epsxe stuttering.

I recently discovered the real cause of ePSXe stuttering problems in some PCs and laptops, even the ones with decent GPUs, and turned out to be that it has little to do with GPU plugin configuration and the actual culprit is the sound plugin!

My favorite sound plugins had been Iori's DirectSound Driver and its Lite version because they sounded with less sound glitches after reloading states in Driver 2, but after finding in one of my HDDs a downloaded 2020 page with ePSXe config tips that the recommended sound plugin was Eternal SPU Plugin (instead of its Iori predecessors), I decided to test it without changing the video plugin I was using (Pete's D3D) and the stuttering practically disappeared.
I later tested P.E.Op.S' and Pete's plugins but the fastest one turned out to be Eternal's, especially in the "thread" as the audio out method, followed by "Timer".

Last week I uploaded a video to
with my findings and a test of some plugins and configs, done on my Lenovo G40-70 laptop and all of them with the same video plugin, Pete's OpenGL core. And the fastest plugin of the test was Eternal SPU Plugin 1.50.
 

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I recently discovered the real cause of ePSXe stuttering problems in some PCs and laptops, even the ones with decent GPUs, and turned out to be that it has little to do with GPU plugin configuration and the actual culprit is the sound plugin!
thanks for trying to solve the problem.

however, I would say that both the solution and the emulator are no longer suitable at present. year 2022.

audio plugins different from the original in the latest version of ePSXe make the emulator even more unstable, despite apparently showing improvement as reported.

and at the same time all alternative plugins are worse in compatibility than the original...etc.

it's a lot of unsolved problems.

use DuckStation or SwanStation.

DuckStation PC Version (Windows, linux) [PSX only] [opensource] [MSVC++]

<Releases · stenzek/duckstation>

the BIOS are the same as used by:

- Mednafen / RetroArch Beetle PSX/HW;

- DuckStation / SwanStation;

Code:
    bios / region / md5
    scph5500.bin JP 8dd7d5296a650fac7319bce665a6a53c
    scph5501.bin US 490f666e1afb15b7362b406ed1cea246
    scph5502.bin EU 32736f17079d0b2b7024407c39bd3050
source: Sony - PlayStation (Beetle PSX HW) - Libretro Docs

Visual C++ Redistributable Runtimes All-in-One (Windows 7-11) [MSVC++] [MSVC++ installer]


dl, unzip, run .BAT as admin, wait, reboot, done!

"How to 'install' BIOS at DuckStation" - by ofernandofilo [2022-03-28]

2022-03-28_18-58-11-x264web [5 min video]

you are ready to play ^^

ePSXe, PCSX-PGXP, XEBRA and all the older ones don't offer the same features and facilities as the newer emulators.

alternatives to DuckStation/SwanStation, there are such as Mednafen or Beetle PSX/HW.

however they have lower performance.
 
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