The question itself is a bit of an oxymoron. As others have pointed out, the slower you go, the greater your range in nearly all use cases unless it's -20 outside and you're debating if it's better to go 10 MPH or 20 MPH (heating the cabin consumes a sizable amount of energy when it's cold out).
I've run some numbers on the Bolt regarding completing long distance trips as quickly as possible, and assuming there is a DCFC placed exactly where you need it all along your route, the most time efficient speed is 75 MPH. Any faster and you're expending energy faster than you can put it back in at a DCFC. In other words, the time you save by driving above 75 MPH is more than eaten up at the charger.
With cars that can charge at greater than 55 kW, there's practically no limit to the most time efficient speed you can travel. Driving faster will get to the destination faster.
I've read a lot about the best speed to drive to reduce total trip time and I would describe most of the logic as true, but misleading:
-Chargers aren't exactly where you need them.
-The car tapers the charge above 55% so you'd need to mostly use the bottom half of the batery to reach the peak charge speeds so need to stop twice as often.
-There is often a time penalty for deviating from your route to go charge somewhere.
-If the battery is cold the charging will be much slower than expected. Like 15kW instead of 55kW while the heater warms up the battery.
-If it's really cold, you'll be using 7kW just to stay warm. This means that driving fast will make your consumption sky high. It also means that your efficiency will suffer if you drive really slowly.
I'd love to see an analysis that factors this stuff in, especially the cold battery part.