What is the fastest way to download video using ffmpeg in node js

I'm using exec that means I can run cmd commands in node js so please give me any code that will download the video in original quality and the fastest. Also provide other solution for most fastest download using ffmpeg

As I've already tried many solutions But seeems like ffmpeg still takes 9 sec idk

Here was my old code

ffmpeg -ss ${start} -to ${end} -i "${url}" -vcodec libx264 -crf 20 -preset ultrafast -avoid_negative_ts make_zero -c:a copy 

Please mention anything more faster then this but original quality, and also mention anything that's the fastest even though a little bit of quality is being compromised