Downloading a file from google at a speed that exceed ISP limitation

Hi ! so today I Found I can download this csv from google https://www.gstatic.com/covid19/mobility/Global_Mobility_Report.csv?cachebust=9e64e67cbad15dab at 17-22mbps (the csv can be found here:https://www.google.com/covid19/mobility/ under "Download Global CSV")

The curious fact is that I have a VDSL plan of 20MB (that would be like 2.0 2.3 mbps)

How can I be downloading this particular file at those rates? I tested it with more than one browser, and in two computers.

Sorry if this is not the correct sub to ask.

Thanks!