Create video scroll image with ffmpeg

问题:

I am creating a video scroll vertical image with ffmpeg.

My code

ffmpeg -loop 1  -t 61 -i 0.jpg  -filter_complex "color=white:s=1280x720[bg];[bg][0]overlay=y=-'t*120':shortest=1[video]"  -r 200/1 -preset ultrafast -map [video] "D:\FFMPEG\output.mp4"

But the video is very bad. Although I set the frame rate at 200, it is jerky.

My source image enter image description here

And result result video