[AMD RX 5500 XT / RDNA1] Mesh Shader Fallback Causes 1 FPS, Low GPU Usage and Excessive RAM Consumption (v2.0.6–v2.0.10) #1253

Closed

opened 2026-11-09 18:56:36 +00:00 by joao0205-lab · 2 comments

joao0205-lab commented

2026-11-09 18:56:36 +00:00

(Migrated from github.com)

Hookshot version

2.0.9

What kind of problem

Something else

What happened

Hello Hookshot developers! 👋

First of all, thank you for implementing the Mesh Shader fallback for GPUs without native Mesh Shader support!

I'm using an AMD Radeon RX 5500 XT 8GB (RDNA1), and I want to report a serious performance and memory issue introduced in v2.0.6 and still present in v2.0.7.
✅ Good news: The geometry is finally rendering!
In v2.0.5, the game ran much better, with approximately 80% GPU 3D utilization, but important geometry was missing.

After the Mesh Shader fallback was introduced, previously missing geometry, including terrain, buildings, trees, vegetation and other objects, started appearing!

This is a huge improvement, and I really appreciate the work!
🔴 The problem: 1 FPS, extremely low GPU usage and excessive memory consumption
Unfortunately

Where in the game

During gameplay, on any save. 1 FPS and high RAM usage.

How often

Every time

Graphics card and driver version

rx5500xt

CPU, RAM and operating system

xeon e5 2650 v4 16gb Ram Windows 10

Changes from the defaults

No response

Other software hooked into the game

No, nothing hooked in

hookshot_log.txt

Screenshots or video

No response

Before you send it

I'm on the newest release, or the problem is still there on it.
I searched the open issues for this problem.
I'm not attaching game files, keys, hookshot.exe, the .bin caches or saves.

### Hookshot version 2.0.9 ### What kind of problem Something else ### What happened Hello Hookshot developers! 👋 First of all, thank you for implementing the Mesh Shader fallback for GPUs without native Mesh Shader support! I'm using an AMD Radeon RX 5500 XT 8GB (RDNA1), and I want to report a serious performance and memory issue introduced in v2.0.6 and still present in v2.0.7. ✅ Good news: The geometry is finally rendering! In v2.0.5, the game ran much better, with approximately 80% GPU 3D utilization, but important geometry was missing. After the Mesh Shader fallback was introduced, previously missing geometry, including terrain, buildings, trees, vegetation and other objects, started appearing! This is a huge improvement, and I really appreciate the work! 🔴 The problem: 1 FPS, extremely low GPU usage and excessive memory consumption Unfortunately <img width="1366" height="768" alt="Image" src="https://github.com/user-attachments/assets/655b83d2-68a6-455e-88dc-dbc6ab78fa8b" /> <img width="1366" height="768" alt="Image" src="https://github.com/user-attachments/assets/3155e9f7-20e6-4f3e-85cd-0ae8e6dc68fa" /> ### Where in the game During gameplay, on any save. 1 FPS and high RAM usage. ### How often Every time ### Graphics card and driver version rx5500xt ### CPU, RAM and operating system xeon e5 2650 v4 16gb Ram Windows 10 ### Changes from the defaults _No response_ ### Other software hooked into the game No, nothing hooked in ### hookshot_log.txt [hookshot_log.txt](https://github.com/user-attachments/files/34593940/hookshot_log.txt) ### Screenshots or video _No response_ ### Before you send it - [x] I'm on the newest release, or the problem is still there on it. - [x] I searched the open issues for this problem. - [x] I'm not attaching game files, keys, hookshot.exe, the .bin caches or saves.

NotRexed commented

2026-11-09 19:19:45 +00:00

(Migrated from github.com)

Thanks for the thorough report. Linking this to the no-mesh-shader fallback tracker #1001 (#1028 is the same RX 5500 XT slowdown: 3 fps and a crash). On the RAM side: A bigger fix for the game's memory use is being worked on. v2.0.11 (out now) already caps texture and shadow memory on integrated GPUs and is worth a try in the meantime.

❤️ 1

NotRexed commented

2026-11-09 22:52:34 +00:00

(Migrated from github.com)

Thanks for the report. To keep each problem in one place, this is tracked in #1001 (GPUs without mesh shaders: GTX 9xx/10xx, RX 400/500/5000, Iris Xe), which links your details. Closing this as a duplicate; please follow #1001 for updates. Fixes for the fallback (#1314, #1317) are planned for the next release. It will be closed when the fix ships; if it still happens after that, comment there with a hookshot_log.txt.

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