First, since you posted your entire suite of settings, Aircraft Stress Damage should be disabled. Asobo has done something that will damage your engine under the hood, but outside of the Nick's engine wear and tear sim, so you'll be happily puttering along until the sim decides your engine dies, but it will still show 100% on the tablet.
The only thing I can think of here is that Realistic Turbulence is anything but. I recommend low, and if it's important to you I have nothing but great things to say about RealTurb. But the realistic turbulence setting itself is insane at low altitudes and then dead again at higher ones.
