Optimize by removing realtime image resizing

[duracell80]

Problem:
On line 99 imagemagick is being called via the command convert to resize the frames to the current screen resolution.

Resolution: Removing these or providing a flag via an arg to stop these from running would make the script run with less battery consumption, however another way would be to say supply a 4k video and downscale it with ffmpeg before extracting the frames as FullHD.