Pathing in this game is terrible. It acts like it's based on an underlying hex-grid where you can only turn 60 degrees to change directions. You can have an unobstructed path between your character and the selected point to run to and your character will not run in a straight line. This is worse when trying to stay away from a mob while staying in range to cast on it. I found that the character would continually run in closer even when in range and often until he was right next to the mob. This meant that between the pathing and slight lag (no prediction algorithm that I could see) I found that I was fighting the pathing system more than the monsters.