Then it dawned on me, there must be a picture fineness setting. Meaning, how much detail do you want the camera to capture. I had this thought after reviewing a number of pictures. None of them are greater than 1MB in size. A high quality jpg image will be up to 1.5MB in size.
Maybe Sony could add a fineness setting for the jpg capture?
A few other things I've found just by obervation.
Lowest ISO looks to be 64
Highest ISO 800
fastest shutter 1/1250
Note, not the easiest thing to get these values, as EV and sports mode need to be engaged.