The ice map and the new Toxic map on duels cause a very noticeable change in fps, especially for people on lower end devices, that make them really annoying to fight on. Its to the point where most people I know just leave the duel at the very start if they queue in to one of these maps. I suggest either modifying the maps so that the majority of the glass and other see-through blocks like ice and water are gone, removing the maps entirely, or maybe just removing the ice map but changing the toxic map floor to concrete or something since it was just added. Even though this probably dosent really affect people with fast devices, I still think its worth doing since its just 1 or 2 of the maps that would be removed and it would largely benifit a lot of people.