Idea: have those EW ships have their engine turned off when they activate the advanced systems; it will help balance the impact on the fights, because the ship itself is a sitting duck and allies have to remain nearby if they want to take advantage of the bonus. Expecially with capital ship battles, we would maybe see no more nonsensical battleship dogfights, but fleet formations around their respective command vessels, shooting each other at artillery distance, like it's meant to be, while fighters and bombers perform raids on the enemy formation and then fall back.
