Optimization

he demonstration scene is running at ~50fps with Epic Settings/Lumen Enabled at 2k on an AMD 7 2700 and RTX2080.

If you need, you can increase the performance in various ways:

• You can decrease the engine scalability. "Epic" is the default setting, you can set it to High setting, which will increase the performance with a low impact on visuals.

• Disable "Use Hardware Ray Tracing when available" or at least set "Software Ray Tracing Mode" to "Global Tracing". This will increase the performance with a low impact on visuals.

Edit - Project Settings - Engine - Rendering - Lumen

Edit - Project Settings - Engine - Rendering - Lumen

Or disable Support Hardware Ray Tracing:

Edit - Project Settings - Engine - Rendering - Hardware Ray Tracing

• Change Shadow Map Method to "Shadow Maps" (Default is Virtual Shadow Maps (Beta)

• You can gain a huge performance by disabling the lumen but it will impact the visuals drastically.

You can disable it from Project Settings or from Post Processing Volume:

Edit - Project Settings - Engine - Rendering - Global Illumination

Post-Processing Volume