This ship is either the pinnacle of the fleet or a silly bug. I encounter this enemy today. OMFG what a turning radius on this ship! Spins on a dime! Turns a full 180 in less than 1 second! This cant be by design, can it?!?!
I usually let them fly around and wait until their EM buff is nearly spent and then use my own Evasive Maneuvers to run away in a direction opposite to theirs (or as close as possible without wasting too much time on turning).
By the end of my short sprint they are at 7km+, flying straight to me, front shields failing, High Yield Torpedo on the way and I am in a position for full broadsides.