Try adjusting these values in "sys.txt":
Spoiler: code

[3d]
use_all_building_textures=1
building_height_scale=2.0 ; this is the zoom factor of 3D buildings, adjusting + or -
fade_around_cursor=1
fade_use_overlap=1
fade_overlap_tolerance=32
fade_distance_for_car=30
fade_distance_for_guidance_arrow=50