My FX1 and PPro 1.5.1 have worked perfectly together, since day one, without any need to weak the software/hardware. And I have not installed the “$499 Cineform plugin”.
In the hundreds of scenes that I have captured, I have only had two scenes that were pixilated. All I had to do was recature those two scenes.
Yes the Cineform plugin will improve performance, but for now, I’m OK.
I also suspect it is your hardware.