Call of Duty: Modern Warfare 4 performance optimizer for Windows. One‑click FPS boost, stutter reduction, and latency tweaks. Open‑source, no game files included.
MW4 Optimizer is a lightweight, portable Windows utility that applies proven system‑level tweaks to improve frame‑rate stability, reduce stuttering, and lower input latency in Call of Duty: Modern Warfare 4. It does not modify game files, inject code, or interact with anti‑cheat systems.
| Feature | What it does | Benefit |
|---|---|---|
| CPU Priority Boost | Sets MW4 process to high priority | Smoother frame delivery |
| Memory Cleanup | Flushes unused RAM pages | Fewer micro‑stutters |
| Network Latency Tweaks | Disables Nagle’s algorithm for the game | Lower ping / hit‑reg |
| GPU Scheduling | Enables Hardware‑Accelerated GPU Scheduling (HAGS) | Reduced render latency |
| Background App Trimming | Suspends non‑essential processes | More resources for the game |
| One‑Click Apply | All tweaks in a single action | No manual registry editing |
✅ Safe & reversible – every change is logged and can be undone from the tool’s “Restore Defaults” button.
⚠️ No game files are bundled – this repository contains source code and build scripts only.
The latest compiled release is available on the GitHub Releases page:
Archive:
MW4_Optimizer_v1.0.zip(contains the executable +README.txt)
System requirements
- Windows 10 / 11 (64‑bit)
- .NET Framework 4.8 (pre‑installed on modern Windows)
- Administrator rights (required for system tweaks)
- Download
MW4_Optimizer.exe(or the.ziparchive). - Right‑click → Run as administrator.
- Launch Call of Duty: Modern Warfare 4.
- Click Apply Optimizations – the tool will detect the running game process and apply the tweaks.
- To revert, click Restore Defaults.
MW4 Optimizer uses documented Windows APIs (SetPriorityClass, EmptyWorkingSet, RegSetValueEx, etc.) to adjust system parameters only while the game is running. It does not:
- Patch game executables or memory
- Read or modify anti‑cheat protected memory
- Download or distribute any Activision content
The full source code is available in the src/ folder.
- No telemetry, no outbound network calls except for update checks (optional).
- The tool is not affiliated with or endorsed by Activision. “Call of Duty” and “Modern Warfare” are trademarks of their respective owners.
- Use at your own risk. See
SECURITY.mdfor vulnerability reporting.
Pull requests are welcome. For major changes, please open an issue first to discuss what you would like to change.
Distributed under the MIT License. See LICENSE for more information.