I use the G2 in 90Hz and with Motion Repro on. This helps a lot, without Motion Reprojection (MR) i also got sick. But with MR on, i felt it was much more realistic in the C172 and i wish it stays this way or for others gets an option to disable turbulence.
The other thing you can do is to fly in the morning in winter, there is less or no turbulence.
Hope this helps!