As a Bg I would recommend reducing the amount of hull strength that the fed ships have.
That way it will help level the playing field for us klingons. I've compared hull strength of each class and even the fed science vessel has a higher hull than a BG level bop.
Make cannons slower on escort class ships since most of them can completely destroy most ships rather quickly from what I've seen. Also lowering the turn rate on fed ships is recommended. Shield strength on fed ships needs to be lowered and their little happy bubble they like to use needs to be removed completely.
Do all of that then I will say that a 5 min cool down is a good idea.
I am assuming your sarcasm doesn't translate well on the internet but just in case. Comparing any BoP to anything other than an escort is ridiculous. That is like saying they need to lower the crew on the Klink Carrier because it just out distances the crew on my escort.