Joe Krall presented analysis on the impact of network performance on the fun and enjoyment of online games. He discussed how distractions like latency, lag and delays can negatively impact a player's immersion and experience. Krall described experiments using games like XBlast that showed a decrease in player ratings as latency increased. Additional studies examined relationships between latency, player ratings and in-game scoring. The conclusion was that following principles of system performance engineering can help minimize distractions and optimize the online gaming experience.