Wildboar broo,
it's normal for high consumption even if it's low pressure. It happens te same way if it's high pressure as well.
the answer lies on your feet...the more you tekan, regardless high or low pressure, it's the foot that pedals down.
P.Craze,
it's always have pro and cons each way. You can change to higher flow rate fuel pump thus supplying more and enuff fuel for your car. Then you might flood your combustion chamber, and fuel consumption is higher.
IF you change to adj. FPR, you can adjust the pressure to be higher to supply the engine, but remember but increasing pressure on the FPR also means that there's pressure back to the fuel pump, thus making the fuel pump worn out faster. Image i close your mouth with my hand, but allowing you to breath.
you can consider both ways.