A 100ms delay is extremely noticeable, especially for faster paced games. That's 6 frames at 60FPS, or 3 at 30. While you may get away with that on 4X games, no

A 100ms delay is extremely noticeable, especially for faster paced games. That's 6 frames at 60FPS, or 3 at 30. While you may get away with that on 4X games, no FPS will ever get to more than 50ms input lag, because it seriously becomes unpleasant to play.