The Vector Tiles is a new technology to deal with the file to a smaller. It Create point to make the scope of the country, away than ever. Then drag a connecting line connecting the points. This makes the scope of the map is not smooth and not the same as the scope of the actual country. On the other hand, when you zoom in the country will be rounded up. But zoom in until the zoom level is determined only. If zoom level than is specified, there will be no information will be show in display.