The RoutingIndexGenerator tool is just a demo for the guys who would like to build the routing index file, with a bit complicated scenarios, such including one-way, fastest or shortest consideration etc. but if we would like to make sure it behaviors similar with Google or Bing maps, I guess more work is required here, I mean more things or configurations we need to make for building Routing Index file. For the performance, I guess we are still limited to the state level, but I think it shouldn't be so slow. Would you please update your requirements to firstname.lastname@example.org, including some demo data, thus we can see if we can create a demo with a leverage between performance and result? Also would you please let us know which product you are using to show the map? I mean the map control you mentioned is very slow when panning. zooming etc.