NatasNJ,
You can adjust the speed sensitivity directly in Mame, go to our website and click on the FAQ web page on the left. At the bottom you will see the question The spinner seems to be moving too slow in Mame, can I speed it up? which should solve that.
As for having the spinner enabled (in all games that require it) at the same time, you have to enable Mouse Support in Mame. Do this by launching Mame, go to options on top, then to default game options, then to controllers, then put a check in enable mouse input.