-add some hills and other stuff that blocks the view of the player
-use LOD’s for the the grass
-reduce the density
-it also depends on the shader complexity
-I personally use grass with 6 tris 
-add some hills and other stuff that blocks the view of the player
-use LOD’s for the the grass
-reduce the density
-it also depends on the shader complexity
-I personally use grass with 6 tris