Light gaming mice under 80g move quickly and smoothly. You can make quick movements without your hand getting tired. That's useful for games where speed and precision are important. For example, fast shooters like Call of Duty or Valorant, as well as battle royale games like Fortnite or Apex Legends. Thanks to its low weight, you can stay sharp for longer and comfortably game during long rounds. Many of these mice have a lightweight design or holes in the casing. That way, you can game faster and more accurately.