Then stop using the Borg set if it doesn't suit you. That set is not primarily designed for escorts but for cruisers.
Aegis was more suited for them in spirit what with the fast engines and the hard shield.
Science got their flavour a little later with the Breen set which has been a little on the underpowered side though, because it was so easy to get.
If you want an efficient escort build it fast, build it resilient. But I think escorts are now whining more that they lose a bit of their supremcacy than cruiser captains whine that they can't kill stuff as fast.
But no one of the whiners from both sides acknowleges that the true power comes from cooperation.
An escort doesn't need to tank if there is a powerful cruiser around and vice versa a cruiser doesn't need to kill things fast when all it has to do is keep the escort alive to do that.
Sure, everyone wants to be Captain Kirk and blow up stuff, but deal with the fact, that this comes with a trade-off.
If any ship was supposed to be a master at everything there would be no need for a skill point cap either. Just let us fill up every skill to the max, let us be practically indestructible, one-shorting deathmachines without any difference whatsoever.