In this webinar, we discuss a feature from mikrotik routerOS that is called fasttrack. This feature will improve routerboard performancce for particular connection. unlike fastpath, using fasttrack requires trigger from firewall filter/mangle.
Correct understanding of connection and connection-tracking is very crucial when configuring the trigger.

Presentation slides are available on slideshare :

Mikrotik fasttrack from Achmad Mardiansyah

And recording is available on youtube: