c11man wrote: this input should speed up fill time and put less strain on the motor.
As strange as it sounds, this actualy puts more strain on the motor. If you have access to a Kill-A-Watt power meter, you can see this loading directly. AC guys measure compressor power consumption as an indication of system performance.
Raising the amount of gas you compress, increases the burdon on the motor. It has to do with being a gas, not a liquid. Higher pressure is more stuff to compress. That takes more power even though the boost in pressure is less. It's like carying a lunch bag up two flights of stairs vs carying a refrigerator up one flight of stairs. The bigger heavier object is more work.
Higher pressure air is bigger/heavier to move unlike higher pressure liquids that remain the same volume.