I don't know what the Kv efficiency is or if that's the real Kv or some rounded number, but to really test the motor in order to make a true comparison to the Motrolfly and Hacker, you should use a ESC with logging capability and first run it up for just a few seconds without a prop load and use the RPMs versus the volts as a baseline. Then run it up to WOT for about 10 seconds after a 15 second warm up at around half throttle with the prop on. If you get 220 unloaded, then you can calculate the Kv efficiency loaded...
KvE = RPMs / (220Kv * volts)
If it can hold 80% with both props, then you may be disappointing with the 19x8 PJN. That should be 2450 to 2500 Watts, 56 Amps, and 17 pounds of thrust. I'm not sure what the 76 Edge weighs, but at 12.5 pounds, that would be about 200 Watts per pound and a 1.4-to-1 thrust to weight.
Motrolfly and Hacker both hold a consistent KvE even when going to a higher load prop, but the batteries will typically sag a bit lowering RPMs to no fault of the motor. On a decent 220Kv motor, you should see 7650 to 7700 RPMs and about 67 Amps with the 19x10. That will be 233 Watts per pound and about a 1.6-to-1 thrust to weight, which is good.
The ballistic power in the video is what 285 Watts per pound and a 2-to-1 thrust to weight looks like.
You should also try the 21x10 PJN or Falcon on 10S with the motor. I do that on the 74 Edge too with the 215Kv and it has a little more grunt in the mid-range but nothing like the 12S with the 20x8 at the top end. Some may like the added torque, but you would need to see 6500 RPMs after the warm-up with the 21x10 or it's not worth it.