American electric kettles are slow because American houses are wired for 110 volt electrical sockets. Whereas UK sockets are 220 volts. UK kettles have literally twice the power as American ones.
I'm aware of that, and in fact said so just after the first picture. In that same paragraph you'll see something which had nothing to do with US vs UK power.
According to the American review of American kettles running on American voltage, one kettle (OXO Brew Adjustable Temperature Electric Pour-Over Kettle, $105-135) boiled water much faster than another (Fellow Corvo EKG Electric Kettle, $150-200).
How much faster? A few seconds? Nope, a full three-and-a-half minutes: 4 min 12 sec compared to 7 min 42 sec. Come on!
Waiting for nearly eight minutes - though the review states that this is "still faster than most stovetops", that's no compliment - defeats the reason for buying an electric kettle in the first place, and that electric kettle in particular.
Calling it "a beautiful kettle for your countertop" means nothing if it doesn't do its job, and IMO an asking price of $150-plus for such an inefficient contraption is daylight robbery.