How to optimize dynamic lighting performance in Unreal Engine 5?

[sAuroraxx]

Hi everyone,
I’m working on a small project in Unreal Engine 5 and using dynamic lighting with Lumen. The scene looks great, but the performance drops significantly on lower-end hardware.

What are some effective ways to optimize dynamic lighting while maintaining decent visual quality?
Any best practices or settings I should be aware of?

Thanks in advance!

[brs-sebascova]

Hello there @Vexonix_Drayven!

Welcome to UE! Investigating around the community, there are multiple resources available. Here are a few particular threats related to dynamic lighting, as well as the basics for Lumen, and handling its performance in your project:

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Hi everyone, I’m currently working on a game scene using Unreal Engine 5 that includes several dynamic light sources to create real-time lighting effects. However, I’m experiencing significant performance drops, especially on mid-range hardware. I’ve tried enabling Lumen and tweaking some Post Process settings, but the improvements have been minimal. I’d like to ask: Is there a recommended way to optimize dynamic lighting without switching to baked/static lights? Should I limit the number o…

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How are you guys optimizing many dynamic light sources (e.g. in a large open world)? I did some testing and the shadows are responsible for killing the performance. So what would be good practice/your ways of tackling that performance issue? Working with Virtual Shadow Maps and Lumen.

Lumen Global Illumination and Reflections in Unreal Engine | Unreal Engine...

Lumen Performance Guide for Unreal Engine | Unreal Engine 5.5 Documentation |...