I don't see why that would be a problem. That script takes about 1.2 seconds to execute on my laptop (and this machine is pretty old and underpowered), so could comfortably execute 30 or 40 times per minute.

Though probably if I wanted to retrieve this data more than once a minute, I'd probably just add a loop to the script so that you execute it once and it runs in the background, repeatedly retrieving the data.