The jittery visual vibration when going over curbs seems excessive, I think it might give me seizures! Maybe I got old but I don't recall it being an issue in the past. Is there a setting to minimise it?
Sure, in the options - 'view' section there is 'Acceleration shifts viewpoint' section with four sliders, adjust these to match your preferences.
I agree that default G-values for the head(camera) tilt in all 3 axes are way too much. I tone them down to about 0.15G and it feels fine.