Best type of characters for Speed Primary/Secondary mods at level 77

Javik,
Thanks for the tip on Han. Part of my problem is that most of the help I'm looking for assumes you're at level 85 and doesn't necessarily apply at lower levels. Speed helps everything, but I didn't know which ones were more important, I just don't have the time in game and haven't had the need for that kind of optimization to understand those things.

Thanks again,
Ralph