Ground Textures are Designed to look best from 1000+ feet above ground level in this and most other Flight Simulators. This is especially true for Photogrammetry Areas! Don’t expect things to look excellent at 20 feet in those types of areas.
A lot of incorrect answers here, so to the topic - Terrible Draw distance of textures (there are also issues with Draw distance of objects, trees and PG) has not been fixed. Same issue is also called LOD.
To be honest there’s still no progress at all (after half of year), even though these issues are in top 3 of bug reports.
So please, vote on all LOD topics, post your screens there and hope, as thousands of us do for months…