The Low Potency is because you have a Turret, 30% Potency to self and turret in your traits, Gauss adds an extra 20% Potency, I've been having fun fully buffing up with B4B,Raging Strike,Gauss,Hawk Eye and doing burst when Wildfire is active. 80% total damage from traits + Buffs, +15% dex, and Wildfire will do 25% of the damage at the end.

I don't quite like the RNG factor of the 1-2-3 combo when ammunition is down but so far that's my only problem with the class