logging values from constantly updating CLI app

[imvirgo]

I use rclone to transfer large files to my cloud bucket. The upload command takes a flag that shows a constantly updating transfer speed readout in the terminal window (see image link at bottom). It looks like it updates about once every second.

Strategically what I want to do is make a graph of speed vs elapsed time. Initially I would guess I'd need to write the displayed values to a text or csv. Is there any module that can do this?

Thanks so much

Joe

https://i.imgur.com/fUlmMin.png