Simply unloading the multi-tapped house circuit will absolutely not come even close to comparing with the superior performance of a properly engineered dedicated line. There are normally multiple connections & wire splices along the way through the house to that 'outlet of interest'.
However you can compare by running a "temporary dedicated line" strung across the floorboards etc. to your rig, but be prepared to follow up with a permanent installation because once you hear it, you won't put up with house wiring ever again.
However you can compare by running a "temporary dedicated line" strung across the floorboards etc. to your rig, but be prepared to follow up with a permanent installation because once you hear it, you won't put up with house wiring ever again.