That seems like an extremely hot vape to me! Steam engine says that's 8.37 volts! What device and atty are you running?
In theory, you can run 100 volts at 0.1 amp and get 10 watt output. Or 0.1 volt at 100 amp and get 10 watt output.
Wattage is not about amperage
or voltage. Wattage
is amperage
and voltage. Voltage and amperage is
input. Wattage is
output - or the
effect of amperage
and voltage, if you will. To adjust wattage, you only have to adjust either voltage OR amperage. In a mechanical mod, you adjust voltage by adjusting the resistance (and thus the amperage). With a regulated mod, you adjust the wattage by adjusting the voltage.
"Sub-ohm" is a term that only made somewhat sense in the days when batteries had an output (amp) limit somewhere in the vicinity of what you would get from a 1 ohm coil on a mechanical mod. There is no magical limit or anything in particular happening around the 1 ohm mark. It's just a number. One that does not do anything on its own.