Replaced expensive IsPet() with GetOwnerID().

zone/mob_ai.cpp

@@ -1321,7 +1321,7 @@ void Mob::AI_Process() {
 				}
 				// mob/npc waits until call for help complete, others can move
 				else if (AI_movement_timer->Check() && target &&
-						(IsPet() || IsMerc() || IsBot() ||
+						(GetOwnerID() || IsBot() ||
 						CastToNPC()->GetCombatEvent())) {
 					if (!IsRooted()) {
 						LogAI("Pursuing [{}] while engaged", target->GetName());