GE Issue with Texture Paint Resolution on Imported Terrain Area/MAP

[Garrison_D]

How can I fix this issue with my Painted Textures looking super blurry and the base layer texture of the terrain being a blurry grey. I have imported this from MapsToPlay and it looks great. Just cant get the normal FS  terrain to be the normal base layer that isnt blurry. My foliage appears fine. For whatever reason its just the base texture and any textures I try to paint that are all blurry