Oh, I see. You need a 60-amp circuit to get 44 miles per hour of charge. So you’ll need to get a 60-amp circuit installed, because a 20-amp will only get you 12-15 miles per hour of charge. I’d love to see what running flat-out on a 60-amp circuit for 8-10 hours every night does to your electric bill. Actually, I wouldn’t, which is one of the many reasons I’ll never buy an EV.
Also keep in mind that a 60-amp circuit with both legs (240v) is potentially 4x the current draw of a 110v 30-amp circuit (twice the amps on twice the number of feeder lines).