SH3 ships damage model

Hi all,
i'm playing a mission where the German heavy cruiser Prince Eugen steams in to visual range..
Problem is, she normally has to take some fire from a couple of British DD's, which more often than not leave her dead in the water, but with very little gunfire damage. It's getting sickening to see the ship looking almost pristine, but stationary.
By contrast, i cannot remember any occasion where a British heavy cruiser has been stopped by a few shell rounds from DD's. Normally they'll keep sailing merrily along until they've taken so much gunfire damage you can't see the paintjob anymore, and if they're not actually sunk they quite often keep going.
I'm talking gunfire damage here, not torpedoes.
Regarding the stationary bit, i've tried it with the Hipper and Lutzow too, the German cruisers all seem to have the same problem.
Is there a fix?

Also, the Lutzow bobs from side to side in the water like a cork, as if her centre of gravity is too high or the hull too narrow.
Is it the LR and UD drag figures in the ships sim file that are responsible for this?
I've not played with them yet. They seem similar to other ships, but i'd love to stabilize her a bit in the water. It must be a miracle if she can hit anything she fires at, i'd have more luck with my deck gun i think.