I tried all the first maps (from ELBoss to ELPillarsGood, then skipped the Endings maps that don't show much since there is the white screen sprite, then tested HDBoss to HDLifeUp), so I guess I must have seen the map you tested. It works very well for me, the display is smooth and the scrolling too. The map follows the mouse almost in realtime, it's not easy to see the delay. Unless I'm not scrolling the way you are? I simply click with the mouse in the map and then drag around. But the memory usage is violent, around 700 megs for Firefox to manage SGDK2 forum, Hotmail and LokRevival.htm at the same time. Is that helping?