LTSharpe / OblivionRemasteredPerformanceFix

# Oblivion Remastered Performance Fix
Higher frame rates in towns and crowds, far fewer hitches while you travel, no long frame when you step out of a door,
quicker menus, and a few crash fixes, for *The Elder Scrolls IV: Oblivion Remastered*. **The game looks and plays the
same**: no lowered settings, no shorter view distance, ray-traced lighting stays on its highest setting. The fix changes
*how* the engine does its work, never *what* it draws.
> **Built by Claude.** The profiling, the reverse engineering, the fixes, the benchmark and these docs were done by Claude,
> Anthropic's AI model, working in Claude Code. LTSharpe set the goal and the rules (never
> change the look), made every decision and played every build. All of the source is here for you to read.
>
> Free and open source. If it makes your game better and you'd like to say thanks, you can
> support the work on GitHub Sponsors. Entirely optional.
> **Beta.** So far it has been tested on one PC (AMD Ryzen 7 5800X, AMD Radeon RX 9070 XT, Windows 11, Steam). If you try
> it, please tell us how it went,
> especially on NVIDIA or Intel hardware, on CPUs with fewer cores, and on the Game Pass version.
Results · Check it on your PC · Install · AMD ML frame generation ·
What it does · Uninstall · Is it safe? · Compatibility ·
FAQ · Help improve it
## Results
| On the test PC | Stock game | With the fix |
|---|---|---|
| **Flight round the Imperial City** at 4K with frame generation, frame rate capped at 60 before frame generation (the maintainer's own settings) | 72 fps, 1% low 33, 19.5 hitches of 50 ms or more per flight, worst frame 135 ms | **102 fps** (+41%), 1% low 45, **4.8 hitches**, worst frame 66 ms |
| **Flight through Cheydinhal** at 4K, no frame generation | 55 fps, 1% low 26, 4-6 hitches of 50 ms or more | **63 fps**, 1% low **43**, **no hitch** |
| **Cheydinhal streets** at 4K with frame generation (3 views) | 64 fps (1% low 50) | **91 fps** (1% low 68), +43% |
| **Cheydinhal when the CPU is the limit** (720p, no frame generation) | 45 fps | **57 fps**, +25% |
| **Stepping out of a door** at 4K: the worst frame as the picture comes back | 187 ms | **95 ms** |
| **Opening the menu** on the Graphics page at 4K | 0.74 s freeze | **0.43 s** |
| **Opening the pause menu or the inventory** at 4K | 0.36 s freeze | **0.20 s** |
| **Alt-tab** after using the inventory or the map | FSR and frame generation stay off | back on at once |
Test PC: Ryzen 7 5800X (8 cores), Radeon RX 9070 XT (16 GB), 32 GB RAM, Windows 11, Steam build 19115871. "4K" = FSR
Performance, hardware ray tracing, Ultra with Shadows High. Every number is the mean or median of 2-4 runs per side, each
in a freshly started game, stock and fix taken in turn, driven by this repository's benchmark (you can re-run every
row: see Check it on your PC). The Imperial City row was measured with this release; the Cheydinhal
flight with an earlier build that had about two thirds of today's fixes; th