Pack of realistic trees for mobile available?

I’m looking for realistic (European) 3d trees usable on mobile (Oculus GO). Already tried: SimpleSummerTrees, LowpolyForest, RealisticTrees, NaturePackage.
Problem is: they all have a very high overdraw - 5k polys is not the main problem.

Anyone knows a source of 3d trees that use another approach (like simple blobs + opacity cards near the edges) that doesn’t generate a high overdraw - something like this picture?
Taken from…born_Trees.jpg