That's the thing...in WWI, few if any DD/torpedo-boat is sporting anything like two rotating quadruple mounts. Some have just a pair of single mounts, and some of those are only effective on one side. Unless you have vast numbers of torpedo-boats, you're not blackening the sea with fish. That and the shorter torpedo ranges seems to sharply reduce the effectiveness.
Then again, maybe I'm playing it wrong...
Sounds to me like you are playing it right!