Hello - I suspect you cannot use peripheral vision - peripheral vision does not require you to shift gaze.
So asked Google AI:
"in a tesla with off centre speedometer on the main display can the driver use their peripheral vision to check speed withtout taking their gaze off the road?"
The answer:
"No, a driver cannot read the exact numbers on a Tesla's off-center central screen using peripheral vision alone; checking the precise speed requires a slight shift of eye gaze away from the forward road. "
You are probably quickly darting your eyes back and forth.