What practical UE5 profiling steps and Nanite/Lumen settings should I try?

[Camila_W]

I'm developing a small-scale but visually dense third-person game in Unreal Engine 5 and I'm hitting major performance issues, particularly with Nanite and Lumen in my detailed environments, causing frame rate drops even on high-end hardware. I've followed basic optimization guides, but I'm struggling to find the right balance between cutting-edge visuals and smooth gameplay. For developers further along with UE5, what are your practical steps for profiling and optimizing a scene, and are there specific settings for Nanite or Lumen you recommend adjusting first, or alternative lighting methods you fall back on when performance becomes a bottleneck?