⚠ MAKE A SYSTEM RESTORE POINT IN CASE ANYTHING GOES WRONG, TUTORIAL HERE
Code Ported & Improved by @SanGraphic
Credits to x1lly for the original program. Peace.
Disclaimer: This project was ported from C# to Rust using Claude Code with Opus 4.5. All functionality has been thoroughly tested and verified to work the same—if not better—than the original C# version. Additional features, tweaks, and optimizations were added by myself based on personal experience and what I actively use on my own system. Call it AI slop or whatever—I don't care. I use this myself daily and the results speak for themselves & you can benchmark it yourself.
- Suspend Windows Explorer to free ~200MB+ RAM
- Kill Browsers, Game Launchers & Background Bloatware
- Apply High Performance Power Plan
- Disable Telemetry & Unnecessary Services
- ReviOS-Style Registry Optimizations
- Advanced Modules: Core Parking, MMCSS Boost, Large Pages, HAGS, Lower Bufferbloat
- System Tray Integration with Memory Trimming
- Explorer Suspension: Safely kills Windows Explorer to reduce DWM overhead
- Browser Suspension: Terminates Chrome, Firefox, Edge, Brave, Opera, Vivaldi, Thorium
- Game Launcher Management: Closes Epic, Battle.net, Origin, GOG Galaxy when gaming
- Shell UX Suspension: Suspends SearchHost, TextInputHost, ShellExperienceHost, etc.
- Bloatware Termination: Kills SmartScreen, Cortana, Widgets, OneDrive, GameBar, NVIDIA overlay
- Peripheral Software: Closes iCUE, Logitech G Hub, Razer Synapse, Armoury Crate
- Core Parking Disable: Prevents micro-stutter from core wake latency
- MMCSS Priority Boost: Maximum CPU priority for game threads (SystemResponsiveness=0)
- Large System Pages: Better TLB efficiency for reduced memory access latency
- HAGS: Hardware-Accelerated GPU Scheduling for lower latency
- Process Idle Demotion: Demotes background processes to idle priority
- Lower Bufferbloat: Disables TCP autotuning for lower network latency (ON by default, with permanent On/Off toggle)
- VBS/HVCI disabled for gaming performance
- Spectre/Meltdown mitigations disabled (optional performance boost)
- MMCSS Game priority maximized
- Network throttling disabled
- Power throttling disabled
- Telemetry disabled
- Services Disabled: DiagTrack, WerSvc, DPS, WdiServiceHost, WdiSystemHost, PcaSvc, WSearch, SysMain + 10 more
Test System: Victus 15 Laptop (AMD Ryzen 5 8645HS + RTX 4050 6GB w/ 16GB DDR5)
Benchmark: Fortnite Creative Map "Martoz 1v1" on DX12 Performance Mode - Epic Textures, High Meshes, High View Distance, everything else Low settings.
| Metric | Baseline | Original (C#) | Rust Fork | Improvement |
|---|---|---|---|---|
| CPU Load (avg) | 36% | 27% | 27% | -25% load |
| CPU Max Thread Load | 65% | 61% | 55% | -15% vs original |
| CPU Max Clock | 4658 MHz | 4720 MHz | 4696 MHz | Stable boost |
| CPU Power | 25W | 22W | 24W | Optimized |
| CPU Temperature | 55°C | 46°C | 46°C | -9°C cooler |
| GPU Load | 36% | 37% | 39% | Better utilization |
| GPU Clock | 2153 MHz | 2151 MHz | 2256 MHz | +105 MHz |
| GPU Power | 25W | 25W | 27W | Higher performance |
| GPU Temperature | 38°C | 37°C | 37°C | Stable |
| RAM Usage | 0.96 GB | 0.67 GB | 0.57 GB | -40% vs baseline |
- Thermal Benefits: 9°C CPU temperature reduction (55°C → 46°C)
- Memory Efficiency: 40% lower RAM usage compared to baseline (0.96GB → 0.57GB)
- Lower Overhead: 15% reduction in max CPU thread load vs original C# version
- GPU Performance: +105 MHz higher GPU clocks with better utilization
Verdict: The Rust fork provides identical thermal benefits to the original while achieving the lowest RAM usage (0.57 GB) and lowest average CPU thread load (55%), making it the most efficient choice for system overhead.
| Metric | Baseline | Original (C#) | Rust Fork |
|---|---|---|---|
| Average FPS | 164.13 | 164.20 | 164.53 |
| P5 (95% of frames) | 126.97 | 128.05 | 135.80 |
| P1 (99% of frames) | 108.20 | 109.85 | 115.40 |
| 1% Low Average | 97.47 | 97.35 | 100.97 |
| P0.2 | 95.07 | 96.55 | 103.60 |
| P0.1 | 87.60 | 91.25 | 90.40 |
| 0.1% Low Average | 71.67 | 66.15 | 59.43 |
| Comparison | P1 Stability | P5 Smoothness | 0.1% Low Change |
|---|---|---|---|
| Original vs Baseline | +1.52% | +0.85% | -7.70% |
| Fork vs Baseline | +6.65% | +6.96% | -17.08% |
| Fork vs Original | +5.05% | +6.05% | -10.16% |
Verdict: The Rust fork with all toggles (explorer off) is the definitive leader in general fluidity. By raising the P5 average to 135.80 FPS and the P1 average to 115.40 FPS, it provides the highest frame floor for 99% of gameplay.
| Category | Placebo | Original (C#) | Rust Fork |
|---|---|---|---|
| < 2ms (Ultra Smooth) | 78.98% | 81.85% | 90.41% |
| < 4ms (Stable) | 16.81% | 14.91% | 8.08% |
| < 8ms (Jittery) | 4.09% | 3.17% | 1.38% |
| < 12ms (Micro-stutter) | 0.08% | 0.04% | 0.08% |
| > 12ms (Heavy Stutter) | 0.04% | 0.03% | 0.05% |
| Comparison | Smoothness Improvement | Micro-Stutter Reduction |
|---|---|---|
| Original vs Placebo | +3.63% | 13.65% |
| Fork vs Placebo | +14.47% | 54.38% |
| Fork vs Original | +10.46% | 47.16% |
Verdict: The Rust fork achieves 90.41% ultra-smooth frames (< 2ms) compared to just 78.98% on placebo—a 14.47% smoothness improvement. Micro-stutter (jittery frames) is reduced by 54.38% vs placebo and 47.16% vs original.
| Aspect | Original C# | Rust Edition |
|---|---|---|
| Runtime | .NET 8.0 (~150MB) | Native binary |
| Binary Size | 144MB | 4MB standalone |
| UI Framework | WPF | Slint (Qt backend) |
| Service Management | C# P/Invoke | Native Windows API |
| Parallelization | Async/Await | std::thread + Mutex |
- Zero Runtime Overhead: No .NET runtime, no garbage collection pauses
- Memory Safety: Guaranteed memory safety without GC
- Native Performance: Direct Windows API calls without marshaling overhead
- Smaller Footprint: Single executable, no dependencies
- Predictable Performance: No GC pauses during critical game moments
# Clone the repository
git clone https://github.com/SanGraphic/gamemode.git
cd gamemode
# Build release binary
cargo build --release
# Binary will be at target/release/gamemode.exeBuild Dependencies:
- Rust 1.70+ (stable)
- Qt 6.x (for Slint UI backend)
- Run as Administrator - Right-click
gamemode.exe→ "Run as administrator" - Configure Settings:
- Toggle "Suspend Explorer" for maximum RAM savings
- Enable "Suspend Browsers" if you don't need browser during gaming
- Enable "Advanced Tweaks" for ReviOS-style optimizations
- Configure Advanced Modules for hardware-specific tweaks
- Activate Game Mode - Click the power button or toggle from system tray
- Launch Your Game - The tool will detect fullscreen games automatically
- Deactivate - Click toggle again
- All changes are temporary: Tweaks are applied only during game mode
- Original state saved: All registry values and service states are saved before modification
- Automatic restore: Everything is restored when game mode is deactivated
- Safe exit: Cannot exit while game mode is active (prevents orphaned state)
- Explorer restart: Explorer is automatically restarted on deactivation
Built with Rust for maximum performance and minimal overhead.