Not got my car yet but I remember reading somewhere that you have to set the car to allow the full 48 ( or in your case 40 ).
I might be wrong but I remember reading that it is set lower so you do not trip the houses circuit.
another option would be to try chargers in the world to see what they give you.
also what rate did the lead get?
let us know how it goes.
The car is set to the full 48A. The 23A is due to the limit set by the Blink unit. The default for that unit is supposed to be 30, but for some reason it is only allowing 23. I've read that it is possible to set it for higher amps, but that the handles on the early models can't take the higher current without overheating, so I'm not going to do that, at least not until a Blink tech does it or tells me in writing it is safe.
I've looked online and the plug for the Volvo cable is for a 50A circuit, whereas mine is for a 40A circuit. I don't dare plug that into a 40A circuit and have it start to draw 48 amps and blow the circuit, but it may be possible that the wiring is capable of handling 50A and only the breaker is 40A. If so, an electrician might be able to test that and switch the socket so I can use the Volvo cable.
I don't understand the question "what rate did the lead get?" If you mean Volvo's cable, I never got it plugged in because it has an incompatible plug. It's supposed to be able to handle 48A and it's a lot thicker than the cable from the Blink.
At the rate it's charging, it should finish around 3:30PM today (PDT) for a total of around eight hours to charge from 33% to 90%.