Krishnagangwal
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FR-AI / ANALYSISWhy it is worth attention
It provides a concrete, measurable fix for a subtle CPU-side stutter that was previously dismissed by the game's own FPS counter, backed by assembly analysis and a live demo.
Who it is for
- GTA V Enhanced players experiencing stutter despite high reported FPS
- Game performance modders and reverse engineers
- Developers interested in audio synchronization bottlenecks
Use cases
- Improving frame pacing and reducing stutter in GTA V Enhanced
- Diagnosing CPU-bound stalls masked by GPU-centric metrics
- Experimenting with audio queue tuning in similar game engines
Strengths
- Measurable 1.9x FPS improvement from 260 to 499 FPS
- Non-invasive – patches only runtime memory, no disk modifications
- Includes two variants (V1 and V2) for testing safety
- Clear assembly notes with RVAs for reproducibility
Considerations
- Tied to a single build of GTA5_Enhanced.exe (version 1.0.1158.13)
- Proof-of-concept status – V2 still considered experimental
- Private/offline research tool, not intended for general distribution
README quick start
gta enhanced audio queue thing
hello. this is a very build-specific POC for a weird audio wait in GTA V Enhanced.
It started with me posting this early-access report because the game would say "247 FPS" insisting everything was fine.
My eyes disagreed. Someone was lying, and it wasn't the GPU.
The slow frames looked CPU-side and someone reminded me that Legacy FiveM had that suspiciously useful
game_useSynchronousAudio convar, and off I went.
A while later I was looking at a three-slot audio queue selected through TLS. normal evening :D.
The actual notes are in docs/notes.md. They contain assembly, guessed names, half-finished thoughts, and the current reason I do not completely trust V2 yet.
video first, explanations later
https://github.com/user-attachments/assets/abbcb3bd-ffc7-4ebe-9904-5320b3c08154
quick performance report
The overlay sits around 260 FPS before the patch and about 499 FPS after it, so the visible difference in this clip is roughly +239 FPS, or 1.9x.
| runtime state | visible FPS |
|---|---|
| original | ~260 |
| patched | ~499 |
the stall disappears, frame pacing cleans up, and the game still makes noises. honestly, that last requirement became more important than expected.
what the exe does
.\audio_queue_poc.exe --status
.\audio_queue_poc.exe --restore
.\audio_queue_poc.exe --apply
.\audio_queue_poc.exe --apply-v2
--status: stare at the bytes, touch nothing--restore: original runtime code--apply: V1, removes three coarse/bounded queue delays--apply-v2: V1 plus a zero-timeout update-side slot check
Restarting GTA restores the original mapping too. Nothing on disk is patched.
V2 is the interesting one, but "interesting" and "finished" are not synonyms. Three queue slots might be plenty. Three queue slots might also be a future audio glitch wearing a fake moustache. needs longer testing.
build
x64 Visual Studio 2022 Developer PowerShell:
cl /nologo /std:c++20 /EHsc /W4 /O2 src\audio_queue_poc.cpp bcrypt.lib /link /out:audio_queue_poc.exe
one build. literally one
GTA5_Enhanced.exe 1.0.1158.13
timestamp 0x6A4F97F6
image size 0x05B81000
sha256 0C52864D4521D9C9D441348AA1156958792DDE8825D0297C851753F167336401
The program checks that identity plu
Description
GTA Enhanced/FiveM Gen9 audio queue POC: ~260 to ~499 FPS in a same-scene test
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