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Fixes the 30 FPS Dreamcast issue on Surwish’s CrossMix-OS for TrimUI Smart Pro S

by Lucien MacMillan 02 Feb 2026 0 Comments
Fixes the 30 FPS Dreamcast issue on Surwish’s CrossMix-OS for TrimUI Smart Pro S

We've received feedback from some customers that Dreamcast games on the TrimUI Smart Pro S (Surwish Crossmix version) are currently running at a slow 30 FPS.

👍Thanks to Mr Stephen's Retro Corner in the Retro community for his review and help, we now have a simple solution. If you don’t want to wait for our OTA update, you can download the patch directly to fix it.

Here is the GitHub link: https://github.com/retrogamecorner/TSPSCrossmixHotfix

Steps to Apply the Patch:
1. Download the latest release  
2. Extract the ZIP  
3. Drag the `Emus` folder to your SD card root (F:)  
4. Choose "Replace" when prompted  
5. Done\!

What This Patch Does:
- ✅ Changes the Flycast 2.4 emulator configuration  
- ✅ Sets it as default  
- ✅ Keeps your original config as backup (flycast\_standalone\_v2.4.sh.old & config.json.old)  
- ✅ Doesn't touch any other files

Requirements:
- TrimUI Smart Pro S  
- Surwish CrossMix-OS  
- \~1MB free space

👉A detailed video by Mr. Stephen is also included for reference:


Thank you for your time! Also, thanks again to Mr. Stephen for his help! If you need any help in the process, please don’t hesitate to contact us, we’re always here to assist. 🍻🎮

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