ゴーストブロックの反映が遅い

every 1 tick:
    set {_loc1} to location(-1001.5,59.5,37.5,world "w-lobby-new") 
    set {_loc2} to location(-997.5,63.5,37.5,world "w-lobby-new") 
    set blocks within {_loc1} and {_loc2} to air
    #make players see blocks within {_loc1} and {_loc2} as air
    loop players:
        location at loop-player is within location(-1050,60,50,world "w-lobby-new") and location(-950,70,-50,world "w-lobby-new")
        make loop-player see blocks within {_loc1} and {_loc2} as stone