I've been encoding screen recordings with
-c:v hevc_nvenc -r 60 -preset p4 -tune ll -b:v 3000k -movflags +faststart -c:a libvorbis -qscale:a 3 -y "output.mp4"
and unless the output is very short, it's extremely slow to seek while stressing the fuck out of my CPU. I have no idea what I'm doing, so could someone tell me why that's happening and/or what I should use instead?