This tool allows to configure hidden settings in Cyberpunk 2077. You can squeeze more FPS out of it this way. It works by generating configration files, and will not modify the game executable. So new Patches will still work with this Tool. You can pick out of 4 Presets, or just play around yourself with your own custom settings.
I recomend to try out the Low preset first. My base framerate was ~45 fps, but with the "low" preset i get now 60 fps without any major quality lose. (Played on almost low anyway before.) Use the Very Low preset only when you really need, because it makes the game ugly.
Copy the executable into your root Cyberpunk 2077 folder.
I also recommend to use the "PerformanceOverhaulCyberpunk Mod" in combination with this tool to reach max performance. https://github.com/yamashi/PerformanceOverhaulCyberpunk