Most of the time, it is either a bad Internet connection or the player-server distance. With bad Internet connection, the player will often have their game pause, freeze, or at times just stop working. Player-server distance is the most common and results in poorly-chosen servers (for example, living in America but, instead of choosing the American server, choosing the Asian server.) For unnecessarily high graphics, simply put them on the lowest, or a simply low, graphics setting.