In my sim, there is a lot of stuttering. I have reinstalled windows and x plane multiple times with no change. my framerate is ok. Even on the lowest setting it still stutters but the frame rate does improve.
intel i5 4690k
m.2 drive for windows ( I have the newest version of windows home)
hard drive 1tb (x plane 11 and other things)
Maybe the screen shot and the log.txt file can help. I have been searching for help for months because the stuttering renders the game unplayable. If you need any other info about my system please ask.