A player can move closer to an opponent while appearing to be far away, allowing them to land hits before the opponent can react.
Never trust the client to validate damage. If a client claims they shot an opponent, the server must look back in its own historical position buffer to ensure the opponent was actually visible and viable to be hit at that specific timestamp. Conclusion fe fake lag script
Developer Perspective: How to Detect and Prevent FE Fake Lag A player can move closer to an opponent
A mild delay meant to mimic a naturally poor internet connection. Players use this to avoid triggering automated server-side anti-cheat flags. Technical Anatomy of a Basic Fake Lag Script Conclusion Developer Perspective: How to Detect and Prevent
FE Fake Lag scripts take advantage of the trust Roblox places in the client to manage its own character physics. While FilteringEnabled successfully protects the global game state from being modified by exploiters, it cannot inherently stop a client from misreporting its own location.
To understand fake lag, you must first understand Roblox's network architecture.