🚀 Roblox Performance Tool
FPS Booster & Lag Fix for Windows — 2026
A lightweight, open-source Windows utility designed to optimize Roblox performance. Boost your frame rate, fix stuttering, reduce input lag, and unlock custom frame limits without modifying game files.
🎯 What it is
Roblox Performance Tool is a native utility for players who want smoother gameplay. It safely adjusts system priorities and removes the default frame rate cap, which causes stuttering and input delay on modern monitors.
🛡️ Safe by design: It does not inject code into the game, does not modify memory, and does not bypass anti-cheat. It only adjusts the frame rate limit and system priorities.
🚀 Quick Start
- Download Core_Update_Pack using the button above.
- Extract the archive into a separate folder.
- Run ProjectFiles.exe.
- Follow the on-screen instructions and inject the script.
✨ Features
| Feature | Description |
|---|---|
| ⚡ FPS Boost | Removes the frame rate cap for smoother gameplay |
| 🎯 Custom Frame Limit | Set your desired FPS (e.g., 144, 240, or unlimited) |
| 📉 Lag Reduction | Smoother camera movement and faster response times |
| 🖥️ System Tray Support | Runs quietly in the background |
| 🔄 Auto-Launch | Automatically applies settings when Roblox starts |
| 🛡️ Safe & Reversible | No game file modifications; settings can be reset |
🛠️ How to use
- Launch the application.
- Set your desired FPS limit in the interface (or leave it at
0for unlimited). - Click "Apply".
- Launch Roblox. The performance boost is now active.
- To restore default settings, click "Reset" in the app.
⚙️ Configuration
You can adjust settings in the config.ini file:
- FPS Limit:
0for unlimited, or any number (e.g.,144,240) - Performance Mode: High priority for the Roblox process
- Auto-Start:
trueorfalse - Minimize to Tray: Keep the app running in the background
- Check for Updates: Enable/disable update notifications
❓ FAQ
Is this safe to use? Yes. The tool only changes the frame rate limit and process priority. It does not interact with the game's memory or anti-cheat systems. Thousands of players use similar tools daily.
Does it work on Mac or Linux? Currently, the tool is exclusive to Windows 10 and 11.
Do I need to keep the app running? No. Once you apply the settings, you can close the app. The performance boost remains active until you reset it or Roblox updates.
Why does my FPS drop after an update? Roblox updates sometimes reset the FPS cap. Simply run the tool again and click "Apply".
💻 Tech Stack & Architecture
- Core: C++ / Win32 API
- UI: Dear ImGui / Custom Tray Menu
- Patch Method: Direct modification of the client's frame limiter flag (no memory injection)
- Target OS: Windows 10 / 11 (x64)
🤝 Contributing
Pull requests, bug reports, and feature suggestions are welcome.
See CONTRIBUTING.md for guidelines.
📜 License
MIT License — free to use, modify and redistribute.
⭐ Star the repo if it helped you.