I can confirm that this trick does work.

However, playing Netflix movies is still a bit jerky. The CPU is pretty much taxed at 100% all the time (overclocked at 900MHz). I tried even 1100MHz and it was a bit smoother, though still jerky at at scenes with lots of action/movement.

I tried changing the video quality from Auto to Low in Playon server settings, but I don't think it made any difference.