well u can start here:
http://forum.ppcgeeks.com/htc-touch-...dont-know.html
there contains a collection of tweaks that u can use to speed up the tp2 notably the removal of the phone canvas dialer. that gave me the greatest speed increase when I had my tp2, u can also flash a different rom such as the stock 6.1 rom or a custom rom such as sharkie or vins.
u can also try to overclock ur tp2 to a higher speed using the program in this thread:
http://forum.ppcgeeks.com/htc-touch-...-app-here.html