After some testing I have best experience with this:
http://support.microsoft.com/kb/2665946
I had only once "wanna be freeze" after 10-20 minutes of flying but application did freeze just for 5 seconds or so and then I could go back to the game with no application crash. After that I had at least eight flights without any issues.
Time at pictures is real time of game play and no time warp was used. It is not perfect but better than nothing. I hope this could help to you too.