at ground level, photoggrametry will be not good, it’s not hand made scenery, (unless you turn photoggrametry to off) but on higher altitude you can do this for now, waiting MSFS to increase this. PSA: LOD Slider Can Be Increased Past 200 - Dramatically Improves Photogrammatery
There is already thread for improvement with vote here Ground texture - Low resolution - Internet incorrect Bandwidth