Do offline AI wingman always turn the fight into a low and slow stall fight? After the 1st merge all my wingman dropped from 8k to 80 feet in like 30 sec a min later they were all gone and left me in the middle of the hornet nest they just stirred. I was amazed by the effort deployed by the AI tough, trying to stall fight a jug against a Zero 
I guess that AI stand for artificial insanity...
Current versions of Aces High tend to fly rather dull "bot" AI in the offline missions. In my experience, they tend to fly low, slow turnfights and frequently crash into the ground or water.
Older versions of Aces High were MUCH better.
Offline mission bots will never have the capacity to do original, clever, sinister, surprising tactics like you see against real humans online, but you can have a lot of fun practicing the basics with [and against] them, especially if you happen to have an old copy of Aces High and missions to match.
