Validate each movement step against max possible speed and acceleration. If a position delta exceeds allowed thresholds, revert the client.
Connect to a server far from your location (e.g., playing on an Australian server from the USA). Your genuine ping will rise to 250-300ms. This causes real lag compensation that favors the shooter in many Roblox games. It isn't a script, so it isn't bannable. -FE- ROBLOX Fake Lag
When a player activates a Fake Lag script, their character does not simply freeze in place on the server. Instead, the exploit interferes with the network packets sending position updates. The result is a character that appears to teleport, jitter, or slide unpredictably across the map from the perspective of other players. Validate each movement step against max possible speed