Meh, buffs are too hard to balance. A lot of work for so little gain, it would create quite an interesting combat enviroment, but tbh I don't see your suggestion as an improvement. For one, all of your suggestions are practically the same, affecting only turn rate and ship shaking (something I don't think can be altered, at least not dynamically.)
One would be determined superior to the others, and then everyone would use that single one and no others, just like how everyone uses Adv. Cargo Scanners, Enh. Thrusters/CMs and Graviton Shields.
So in the end you're not really providing a new and exciting battle enviroment, you're just buffing every ship in the same way. Seems kinda pointless to me.