Meh... I'd still argue it is imbalanced.
I reckon you should be able to choose between a fast, lightweight build that's fragile, but jumps far and should be able to outrun almost anything (but can't fight to save its life....)
Or you can build a ship stacked with weapons, shields, reinforcement packages, shield boosters, shield-cell-boosters that can give and take a pounding (but should be heavier and less agile)
Or a compromise build somewhere in between.
As it stands, you can effectively build a 'tank'-like ship with no compromise on firepower or shields/hull, that's retains enough agility and speed to outrun and destroy most lightweight explorer craft builds. That makes no sense to me, from a balancing (tanks are rarely fast or agile) or realism perspective.
Agree very much about tanks should never be agile or fast.