Just came back from a long break, When I go to a busy map (items on the ground from monsters) my client became unresponsive and very, very laggy for a few minutes. For example, in the map HHG1/2, when people are farming, once I get into the map, my client starts to freeze and laggy. I noticed when it's happening, the CPU utilization jumps around 4.3%, the normal is 1%~, while the other clients are acting fine. Is there any workaround you can recommend?