Unsolved Terrain PBR Textures issue

I've imported some PBR Textures which are a 2k resolution.

Any idea how to fix the issue of them being blocky? Im trying not to restart my map.


Or is there a way to revert back to the old terrain texture set?

 

Im pretty sure the PBR materials dont transition smoothly to other materials, and thats why there are sharp edges around the stone and grass. It happens in my map too, and I dont think theres any way to fix it

 

Add decals over the transitions.

 

Use the overlay texture for colour only. Make this the image of the whole map. Look at vanilla texture setup to compare.