I agree with this post, this is a real shame!. This is NOT the way to gain performance! 
The lod has been degraded to a ridiculous level, I can’t see any tree farder than half a mile in most situations (all sliders to 200), wth?. And to gain absolutely no performance for me, pretty much the opposite, the sim runs worse than before.
take a look here:
https://forums.flightsimulator.com/t/trees-lod-too-low-degraded/240647