I have attached a save game which was working A-OK in the previous patch, when I was playing on Sunday July 15. After patching today, the game is an unplayable crawl while viewing the system with all my ships (the home system). Loading the ships into a transport resolves the issue, but obviously this is not much of a work around. I also note that cpu usage is pegged on 2/8 cores while viewing that system.
Restarting AI War does not resolve the issue. It's possible this is unrelated to the patch, but it seems suspicious to me.
Windows 7 Ultimate 64bit
Main Memory: 8GB
CPU: Intel Core i7-2600K @3.4GHz (8 cores)
Graphics: 2x AMD Radeon HD 6900, CrossFire enabled (4GB total graphics memory)
As you might imagine, I've never had even the slightest performance problem with AI War before.
I'll be happy to provide any other information you want.