After lowering my graphics settings, the game still runs slowly during battles. How can I improve performance?
If you have not already done so, please see the Napoleon: Total War Performance Tips section in the ReadMe for ways to increase the speed at which the game runs on your computer.
If the game is still running slowly during battles, you should disable the floating flags that appear over your units. To do so, follow these instructions:
From the Main Menu, select Options.
Select User Interface.
Under Floating flags, set both Land units and Ships to Never.