After a several year break from Trainz, not by choice just not enough time, I decided to build a small model railroad to learn TANE's new features. It's based on the Virginian's White Oak branch in West Virginia. After about a day's work it's about 1/3 complete.
On a small MRR you shouldn't need to worry about FPS, so these billboards aren't really that great for a MRR.
Maybe you could replce them with some nice 3D ones?
That sort of tree is wonderful to use, because it's only a 3D-tree when camera is close.
At further distance it's just a flat 2D-tree, but you won't notice that..