1: Slowness: Try Navcore 9.051. If that is slow too, stick with a version 8.*, like 8.562 or 8.417.
2. Do you have the file \gns\TmcEApi.so and the file \mctx.dat? What about the file tmccodes.dat in your map folder?
3. These files are needed by both the FM transmitter and the TMC module. My programming knowledge does not stretch as far as to be able to tell you their function, unfortunately.