Yep, haven't been using the A-10C for quite a long time it seems, as I initially thought that Starway textures was causing this problem, but I actually found out it's 1.5 that actually worsened it (and it wasn't perfect before either).
EDIT:
Current update uses noisemax 0.6
Starway textures use noisemax 0.9
So starway textures do indeed worsen the visibility.