With some experimentation and the recommendation of another thread with the same issue, I’ve resolved most of the problem. If you turn the terrain pre-caching to ultra then that eliminates stutters in the air for me. However, this seems to be mostly a ground problem. At about 200ft AGL and below, it starts to stutter but not as bad. Interestingly, DX12 seems to benefit the most from terrain pre-caching even in very dense city areas as long as you’re above about 200ft AGL.