Troubleshooting Virtual Shadow Maps (Nanite)

Profile GPU shows that ShadowDepths is the most expensive thing in my project right now. I haven’t been able to find much about optimizing Virtual Shadow Maps or the SWRasterizer. All foliage you see is nanite with “preserve area” selected. Currently I’m getting around 40 FPS. The only thing I’ve found that increases the FPS is setting the Lux to 0.0 - which I don’t want to do.

Does anyone have any help or advice? Thanks! (Screenshots attached below)


I would revise the shadows used in the environment. I found this video which might help you with performance: https://www.youtube.com/watch?v=AobyMegpUMg