# How can I twist RetroArch configuration for better performance? **URL:** \ **Category:** Emulators\ **Created:** [February 24, 2020, 8:37am UTC](https://forum.clockworkpi.com/t/how-can-i-twist-retroarch-configuration-for-better-performance/5338 "2020-02-24T08:37:30Z")\ **Posts on this page:** 8\ **Page:** 1
**Author:** ![simanwhite](https://yyz1.discourse-cdn.com/flex029/user_avatar/forum.clockworkpi.com/simanwhite/32/3509_2.png) [@simanwhite](https://forum.clockworkpi.com/u/simanwhite)\ **Post date:** [February 24, 2020, 8:37am UTC](https://forum.clockworkpi.com/t/how-can-i-twist-retroarch-configuration-for-better-performance/5338/1 "2020-02-24T08:37:30Z")
I’ve tried GBA, FC, SFC games on my gameshell, and they perform well. But when I used PCSX ReArmed core to play Resident Evil 3 PSP version, the FPS is quite low, and sound track crackles. Even for Metal Slug 2 MAME version, the FPS drops occassionally. I saw video that someone played PSP games like Ridge Racer on gameshell. Is there any tutorial on how to twist RetroArch configuration for better performance, please? What’s the performance limitation of gameshell? Can it even handle PSX games? Thanks 🙂 ---
**Author:** ![cash](https://yyz1.discourse-cdn.com/flex029/user_avatar/forum.clockworkpi.com/cash/32/3324_2.png) [@cash](https://forum.clockworkpi.com/u/cash)\ **Post date:** [February 24, 2020, 9:31am UTC](https://forum.clockworkpi.com/t/how-can-i-twist-retroarch-configuration-for-better-performance/5338/2 "2020-02-24T09:31:17Z")
You can use armv7-neon-hf core instead of armhf core. For example, if you want to change MAME core: 1.Open “~/apps/Menu/20\_Retro Games/10\_MAME/action.config” 2.You will see the last line is “SO\_URL=https://buildbot.libretro.com/nightly/linux/armhf/latest/mame2003\_plus\_libretro.so.zip”. 3.Then replace “armhf” with “armv7-neon-hf”, save this file and close it. 4.Delete “~/apps/emulators/mame2003\_plus\_libretro.so” and “~/apps/emulators/mame2003\_plus\_libretro.so.zip”. 5.Enter “MAME” from main menu, redownload MAME core. ---
**Author:** ![bitdweller](https://avatars.discourse-cdn.com/v4/letter/b/a183cd/32.png) [@bitdweller](https://forum.clockworkpi.com/u/bitdweller)\ **Post date:** [February 25, 2020, 9:40am UTC](https://forum.clockworkpi.com/t/how-can-i-twist-retroarch-configuration-for-better-performance/5338/3 "2020-02-25T09:40:32Z")
I don’t know how it is now, but I played PSX games without problems and with good FPS (enough for me, don’t know exactly how many) by running PCSX reARMed natively, not through the RetroArch core. The core was very slow, but running the standalone work fine! Take a look at this post: [PCSX ReARMed for GameShell](https://forum.clockworkpi.com/t/pcsx-rearmed-for-gameshell/436) You can make shortcuts as well on the “Home Screen” to run games on the standalone emulator. ---
**Author:** ![simanwhite](https://yyz1.discourse-cdn.com/flex029/user_avatar/forum.clockworkpi.com/simanwhite/32/3509_2.png) [@simanwhite](https://forum.clockworkpi.com/u/simanwhite)\ **Post date:** [February 26, 2020, 6:31pm UTC](https://forum.clockworkpi.com/t/how-can-i-twist-retroarch-configuration-for-better-performance/5338/4 "2020-02-26T18:31:37Z")
Thanks a lot for your reply. I’ll try this later 😀 ---
**Author:** ![simanwhite](https://yyz1.discourse-cdn.com/flex029/user_avatar/forum.clockworkpi.com/simanwhite/32/3509_2.png) [@simanwhite](https://forum.clockworkpi.com/u/simanwhite)\ **Post date:** [February 26, 2020, 6:34pm UTC](https://forum.clockworkpi.com/t/how-can-i-twist-retroarch-configuration-for-better-performance/5338/5 "2020-02-26T18:34:21Z")
PCSX ReARMed works fine. Thanks a lot for your help. I’ve downloaded the PCSC pack and upzip it on my gameshell. After chmod +x the pcsx file, I can start PCSX, and run Resident Evil 3 smoothly on it. 👍 There’s still another question: I’ve tried PBP image, and it works fine. But it gives " unsupported/invalid CD image" when I tried to load \*.iso image. Any suggestion, please? Should I upload any unique BIOS? ---
**Author:** ![bitdweller](https://avatars.discourse-cdn.com/v4/letter/b/a183cd/32.png) [@bitdweller](https://forum.clockworkpi.com/u/bitdweller)\ **Post date:** [February 27, 2020, 9:19am UTC](https://forum.clockworkpi.com/t/how-can-i-twist-retroarch-configuration-for-better-performance/5338/6 "2020-02-27T09:19:24Z")
No idea there, I haven’t had any problems and I have used .iso files. Maybe there is a problem with the ISO? Does it work on a different emulator, perhaps on your computer? ---
**Author:** ![simanwhite](https://yyz1.discourse-cdn.com/flex029/user_avatar/forum.clockworkpi.com/simanwhite/32/3509_2.png) [@simanwhite](https://forum.clockworkpi.com/u/simanwhite)\ **Post date:** [March 2, 2020, 10:00am UTC](https://forum.clockworkpi.com/t/how-can-i-twist-retroarch-configuration-for-better-performance/5338/7 "2020-03-02T10:00:13Z")
Is there any limitation for PCSX ReArmed? I mean, I’ve tried PS1 games on it, but is it made for PSP or PS2 games? ---
**Author:** ![bitdweller](https://avatars.discourse-cdn.com/v4/letter/b/a183cd/32.png) [@bitdweller](https://forum.clockworkpi.com/u/bitdweller)\ **Post date:** [March 2, 2020, 12:11pm UTC](https://forum.clockworkpi.com/t/how-can-i-twist-retroarch-configuration-for-better-performance/5338/8 "2020-03-02T12:11:50Z")
Only PS1. The GameShell wouldn’t handle anymore at this point, sadly ☹