If WAR does not receive Keystrokes while in the background, I can write you an open script using HotkeyNet that you could try.
Although if you only get 1-2 FPS you probably won't be able to play anyways.
I guess I could still provide the script, via copy/paste, and you could try it out with 2 instances, if your computer can handle that.
As I said above, the script will be copied into this thread, and can be scrutinized by the community. No harm.
If there is no /follow, however, I don't see the point :p Might just be temporarily broken.