He opened the configuration file. He tweaked the Quality setting to Balanced (59% resolution), trading a slight bit of sharpness for a higher framerate buffer. He needed the headroom.

for AMD’s FidelityFX Super Resolution (FSR) 2 technology. It allows games built on the Vulkan graphics API to interface with the FSR 2.0 upscaling algorithm. Technical Overview FSR 2.0 is a temporal upscaling solution

If you are receiving an error that this file is missing, follow these steps in order of safety:

(Do not use or post full copyrighted/proprietary code from games or vendor SDKs without license; consult FSR2 license for usage examples and required attributions.)