This is if you are seeing issues with shimmering of the ground tiles.
This is due to those texture not having mipmaps.
Here is the link to the remastered ground textures with mips that will solve this issue.
http://www.sunskyjet.com/KPHL/KPHL_mipmapped_ground.zip
Just unzip and dump the contents into the Sunskyjet_KPHL_FS9_SC texture folder