Do you mean the same "secret sauce" Valve talked about a year ago?
PSVR is not comparable to Rift or Vive.
Except they are. We're not talking an order of magnitude difference, as we would be between a galaxy S6 and any of the 3 headsets you mentioned. Whether you're speaking of resolution, framerate, per-pixel gpu resources (recommended spec, which most sane developers will be targeting for the next half year or better), they're within spitting distance (less than 50% drop between Vive/Rift to PSVR, often much closer, or in the case of display refresh rate, the PC headsets are notably inferior). If you single out CPU, you can actually make a point, but you didn't.
Of course, this is the platform zealot mentality that 12% is "MASSIVE," despite the prevalence of comparisons where there are differences of literally 1000%+ (as in console generations, mobile vs dedicated GPUs, etc). And ridiculous beliefs like "PSVR will have to render at early PS3 or PS2 levels" will endure.