Hm.....anything in particular? I can't really change much of the logic behind how it works unfortunately, but might be able to rearrange the UI a little. I'd also wait on 1.6.2, as that has some improvements I believe.

One of the big issues I have with the fleet management is how Strike Forces always go out to hunt submarines and waste a massive amount of fuel. There should be an option to prevent that.

Another thing that really bothers me is how little information the naval combat window shows you. When there's a naval battle you see the ships move towards each other and you see what ships are sunk, but it doesn't actually show you what's going on during the naval battle.

So it's really hard to understand how well your ships and fleet is performing. What needs to be improved etc. When there's a naval battle the UI should show you what ship is attacking what ship, what weapon they are using, if they are being pierced, etc.

HOI4 has been really bad at giving the player feedback from day one basically.