Voltaic Thrusters give the same speed boosts as the A.X.I.S. variant, enabling your ships to perform the basic functions of kiting and blitzing.
Voltaic Thrusters lack the fleet-wide Harmonic Agility bonus of the Harmonic Chase Thruster, meaning that your ships will have great difficulty catching up and running from fleets consisting of purely A.X.I.S. Hulls. Mix-and-matching ships from both factions can somewhat alleviate this problem.