I’m trying to use ffmpeg to record my screen but this command below is consuming 6% of the CPU.
It appears that VBR does not work and the video is not 60fps.

./ffmpeg.exe -f gdigrab -hwaccel cuda -hwaccel_output_format cuda -i title="Rocket League (64-bit, DX11, Cooked)" -c:v h264_nvenc -preset p7 -b:v 5000k -movflags +faststart 60fps.mp4