I have a 4k monitor and a Nvidia Geforce Rtx 2060 super. Many games struggle to run at 4k at a decent framerate, and many games today still don't have an in-game internal scaler to reduce the rendering res, so I must set the monitor resolution at lower non-native res but the result is softened and blurred graphics quality in games. I know that Amd cards have the possibility to use TriXX Boost, a specific software that enables to run games at higher fps by reducing the rendering resolution and upscaling the final output image to the monitor 4k native resolution. This way you don't have to lower the monitor resolution nor the game resolution, avoiding softened and blurred images. I've done some reasearchs and wasn't able to find something similar for Nvidia cards. Do you know if there are any software which do the same for Nvidia cards, by reducing the game rendering resolution and upscaling the final output image to the monitor native res?