I use 80 000 to 500 000 triangles objects in my scenes without much problem (and without LOD). Your performance problems could be more related to lighting maybe? Can you post pictures of your global level with and without wireframe view?
I use 80 000 to 500 000 triangles objects in my scenes without much problem (and without LOD). Your performance problems could be more related to lighting maybe? Can you post pictures of your global level with and without wireframe view?