The action is almost as quick as if it came from a box in your living room. When you press a key, whether to shoot an enemy or catch a ball, OnLive's servers calculate the next image at least 15 times as rapidly as an ordinary desktop PC does. Then software compresses the image so it can reach you in less than 80 milliseconds. This compression differs for each user, because OnLive constantly measures the speed of your Internet connection to determine how much data it can squeeze through. Sometimes it decreases the pictures' quality, but they look natural in motion.