Latency in virtual reality refers to a delay between user input (e.g., head, hand, or leg movements) and output (e.g., visual, haptic, positional, audio) caused by a mixture of technical problems that are likely to be eliminated as the technology advances. In its most common context, the delay between the user’s movement and the visualization in a game, for instance, latency is usually measured in milliseconds. High latency can cause VR sickness due to the extremely unnatural feeling of sight lagging behind the movement.
