i found a solution.
it was the ups i have removed the ups usb cable from pc the battery monitoring stopped and no more mini freezes

found this
Solved Stuttering/Freezes/Sync issues XPlane 10 w Nvidia GPUs - X-Plane Tips and Tricks - The AVSIM Community

also try turning off Threaded Optimization (located in the Nvidia Control...

this weird problem also happens to me exactly as you described it. I run a desktop with amd 8320 cpu and nvidia gtx 970 gpu os windows 10. today i will try the power profiles. plz if you find...