It's imposible that a war ship had his agility. Not her speed , the agility do you need halft Atlantic for made a turn.
If this is his real agility,I believe that his was sunk by Bismark.
If all big ships ,(BBs, aircarries, heavy cruisers etc.) have the same problem its imposible that we can play.
Please revise the BBs. They can make a turns more quik
please see this image:

ok it's not a bbs ,but he is the Hiryu, he go to emergency march and he can turn very quick. The Hood of the game can't make this opertion, and reality he could make.