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.
Or disable Support 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:
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