See exactly what "FPS boosters" actually do to your system.
Commercial optimization tools charge $30-60 for simple Windows tweaks. OpenTweak does the same things - completely transparent, showing you exactly what each tweak does and whether it actually helps.
Requirements:
- Windows 10 or 11
- Run as Administrator (required for registry/service changes)
Every tweak shows what it actually does, with honest effectiveness ratings.
| Tweak | Category | Impact | What It Does |
|---|---|---|---|
| Timer Resolution | System | ✅ Effective | Sets Windows timer to 0.5ms |
| Mouse Acceleration Fix | Input | ✅ Effective | Removes acceleration for 1:1 input |
| FiveM Cache Cleaner | Cleanup | ✅ Effective | Clears cache, crashes, logs |
| Shader Cache Cleaner | Cleanup | ✅ Effective | Clears GPU shader caches |
| VBS Disable | Security | ✅ Effective | Disables Virtualization-Based Security |
| Power Throttling | Power | ✅ Effective | Disables CPU power throttling |
| Ultimate Performance | Power | Hidden high-performance power plan | |
| Game DVR Disable | Windows | Disables Xbox Game Bar | |
| GPU Priority | GPU | Forces dedicated GPU for GTA V | |
| HAGS | GPU | Hardware Accelerated GPU Scheduling | |
| Windowed Optimizations | GPU | Disables DWM optimizations for games | |
| FSO Disable | System | Disables Fullscreen Optimizations | |
| System Responsiveness | System | Prioritizes foreground applications | |
| Game Priority | CPU | Sets game process priority in registry | |
| Startup Delay | System | Removes Windows startup delay | |
| Visual Effects | System | Disables animations and effects | |
| Service Manager | System | Disables unnecessary Windows services | |
| Debloater | System | Disables telemetry services | |
| RAM Cleaner | Memory | Clears standby memory | |
| TCP Optimizer | Network | ❌ Placebo | Disables Nagle's Algorithm |
| CPU Unparking | CPU | ❌ Placebo | Prevents core parking |
| Network Throttling | Network | ❌ Placebo | Changes throttling index |
| Priority Boost | CPU | ❌ Placebo | Modifies process scheduling |
Legend: ✅ Actually helps |
→ Full documentation for all tweaks
| What They Claim | Reality |
|---|---|
| "Doubles your FPS" | These tweaks give 0-5% at best |
| "0.5ms input lag reduction" | Timer resolution ≠ input latency |
| "Syncs with server tick rate" | Client can't control server timing |
| "Optimizes network for gaming" | Games use UDP, TCP tweaks don't help |
| "100% VAC safe" | FiveM doesn't use VAC anyway |
The actual factors for FiveM performance:
- Server quality (scripts, player count)
- Your internet connection
- Hardware specs
- Nothing you can fix with registry edits
# Clone
git clone https://github.com/SwisserDev/OpenTweak.git
cd OpenTweak
# Build
dotnet build src/OpenTweak/OpenTweak.csproj -c Release
# Or publish single-file exe
dotnet publish src/OpenTweak/OpenTweak.csproj -c Release -o publishOutput: publish/OpenTweak.exe
The exe isn't code-signed, so Windows SmartScreen may warn you. This is normal for open-source software. Options:
- Click "More info" → "Run anyway"
- Build from source yourself
OpenTweak/
├── src/OpenTweak/
│ ├── Services/ # Individual tweak implementations
│ ├── ViewModels/ # MVVM view models
│ ├── Models/ # Data models
│ ├── Helpers/ # Registry, process utilities
│ └── Resources/ # WPF styles and themes
├── docs/tweaks/ # Detailed tweak documentation
└── .github/workflows/ # CI/CD pipelines
Found a tweak that should be exposed? PRs welcome.
Guidelines:
- Each tweak needs honest effectiveness rating
- Include technical details (registry keys, commands)
- Explain what it actually does vs. what sellers claim
MIT - Do whatever you want with this code.
OpenTweak - Because you shouldn't pay $30 for registry edits.