[GH-ISSUE #4007] [GAME BUG]: Bloodborne CUSA03023 AND CUSA00900 Has Performance Difference - LOG ADDED #1198

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opened 2026-02-27 21:10:27 +03:00 by kerem · 2 comments

kerem commented

2026-02-27 21:10:27 +03:00

Owner

Originally created by @SercanDmr on GitHub (Feb 8, 2026).
Original GitHub issue: https://github.com/shadps4-emu/shadPS4/issues/4007

Checklist (we expect you to perform these steps before opening the issue)

I have searched for a similar issue in this repository and did not find one.
I am using an official build obtained from releases or updated one of those builds using its in-app updater.
I have re-dumped the game and performed a clean install without mods and the issue is still present.
I have disabled all patches and cheats and the issue is still present.
I have all the required system modules installed.

Describe the Bug

Performance difference between CUSA03023 & CUSA00900.

CUSA03023 performance is much lower + lag spikes.

CUSA03023 -> Old Hunters Edition CH Version

CUSA00900 -> Standard Edition EU Version

Reproduction Steps

Play the game.

Specify OS Version

Steam OS (Linux/Arch Linux)

CPU

Steam Deck

GPU

Steam Deck

Amount of RAM in GB

Steam Deck

Amount of VRAM in GB

Steam Deck

Log File

CUSA03023.log.zip

shadps4 v0.14.0

New required system modules are exist.

Originally created by @SercanDmr on GitHub (Feb 8, 2026). Original GitHub issue: https://github.com/shadps4-emu/shadPS4/issues/4007 ### Checklist (we expect you to perform these steps before opening the issue) - [x] I have searched for a similar issue in this repository and did not find one. - [x] I am using an official build obtained from [releases](https://github.com/shadps4-emu/shadPS4/releases) or updated one of those builds using its in-app updater. - [x] I have re-dumped the game and performed a clean install without mods and the issue is still present. - [x] I have disabled all patches and cheats and the issue is still present. - [x] I have all the required [system modules](https://github.com/shadps4-emu/shadPS4/wiki/I.-Quick-start-%5BUsers%5D#4-dumping-firmware-modules) installed. ### Describe the Bug Performance difference between CUSA03023 & CUSA00900. CUSA03023 performance is much lower + lag spikes. CUSA03023 -> Old Hunters Edition CH Version CUSA00900 -> Standard Edition EU Version ### Reproduction Steps Play the game. ### Specify OS Version Steam OS (Linux/Arch Linux) ### CPU Steam Deck ### GPU Steam Deck ### Amount of RAM in GB Steam Deck ### Amount of VRAM in GB Steam Deck ### Log File [CUSA03023.log.zip](https://github.com/user-attachments/files/25160826/CUSA03023.log.zip) shadps4 v0.14.0 New required system modules are exist.

kerem closed this issue

2026-02-27 21:10:27 +03:00

kerem commented

2026-02-27 21:10:28 +03:00

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Owner

@red-prig commented on GitHub (Feb 9, 2026):

[Config] <Info> (shadPS4:Main) emulator.cpp:240 Run: GPU directMemoryAccess: true
Why do you enable DMA?

@red-prig commented on GitHub (Feb 9, 2026): `[Config] <Info> (shadPS4:Main) emulator.cpp:240 Run: GPU directMemoryAccess: true` Why do you enable DMA?

kerem commented

2026-02-27 21:10:28 +03:00

Author

Owner

@SercanDmr commented on GitHub (Feb 9, 2026):

[Config] <Info> (shadPS4:Main) emulator.cpp:240 Run: GPU directMemoryAccess: true Why do you enable DMA?

Frees up the CPU, faster data transfer, more efficiency, less latency.

I closed the issue, I found the problem source, it's not about shad.

@SercanDmr commented on GitHub (Feb 9, 2026): > `[Config] <Info> (shadPS4:Main) emulator.cpp:240 Run: GPU directMemoryAccess: true` Why do you enable DMA? Frees up the CPU, faster data transfer, more efficiency, less latency. ------------ I closed the issue, I found the problem source, it's not about shad.

kerem referenced this issue

2026-02-27 21:14:44 +03:00

[PR #1203] [MERGED] Fix title music playing when it shouldn't #1988