Hi guys, Yes dynamic lighting and tessellation definitely play a big part in the framerate. The river by itself is not much of a hit at all and it also has scalable features. I’d imagine it should be perfect for what you’re looking for! As i mentioned there are plenty of features to disable as well as the ability to export any spline meshes you create so everything is static. It has huge potential in whatever scenario you’re looking for, high quality or high performance. Hope that helps!