Hi Ed,
I am currently getting painful stutters when moving my view point using TrackIR, (especially at the freeware EGKK Gatwick airport) with the latest display driver regardless of whatever graphics settings I choose to set within MSFS. I may have broken something. I don’t know if this is related to the 496.13 driver or if anyone else has experienced the same with this driver?
Thank you for the feedback. I am not sure which image you are referring to where you have noticed my FPS is being displayed, (if indeed you are referring to an image or just my writings?). I am using Z Shift Stats which only appears to display in red text? Does/can this display in green text then? I currently have my FPS locked at 30 FPS within the simulator. Only a few weeks ago my PC was replaced with a much higher specification PC which has allowed me to run full ULTRA at 1070P.
Ed, just PM me if you have any further advise otherwise we will side off-topic. 
Cheers!
Charles.