Sorry to hear about specific problems and unsatisfying experiences. I have only flown the TBM930 in the sim and I use a Thrustmaster T16000m that was plug and play without any adjustments for sensitivity. I have also programmed many of the buttons to features that I prefer for my flying. I also use the real world ForeFlight app with the sim. The parameters programmed into ForeFlight for the TBM930 match the sim precisely. All the main read outs in the sim match the calculations done by ForeFlight on the ground and during flight. Since I have never flown the TBM in real life, I am in no way able to comment on the accuracy of the flight characteristics. I will say that the performance of the Pratt & Whitney PT6 responds like the videos I have studied. Just now working on a combined RNAV and VFR flight video into Courchevel and the autopilot is working flawlessly.
So I know it is unfortunate that some are at wits end with this sim, but I have to believe the setup is just not correct for those having problems.