The map is just too slow for me on my slow computer or internet connection

Yes, the map uses a lot of bandwidth and processing power, and if it's too painful to wait for it, you may want to try the List members on one page feature to list all the members in the geographic area you're looking at, or the Search for members feature to look for a specific city or town. The map is a nice feature, but it doesn't work well on very slow computers or internet connections.