"Motion" video motion detecting software framerate issues

I am trying to configure motion (https://motion-project.github.io/) to record video files. No matter what value I set the framerate option the video files that are created all appear to have a framerate of between 1 and 2 FPS. I am running on a Raspberry Pi Zero. Is it possible that the frame rate is being throttled or limited by available memory or processor speed of raspi zero? Anyone have any insight into this issue? Here is my config file: https://pastebin.com/28teAEiJ