>>720578867
They CAN be more accurate than the software emulators you have on your PC, since you can mess with things on a hardware level, but it depends on the software ("core") programmed for it, and at this moment, most cores are the same if not worse than the best software emulators.
MAYBE the cores will get mature enough to unlock the true potential of FPGA and MAYBE these earlier models will be compatible with this new software. But right now? They're a total scam and OP is a paid shill.

>>720430739
That's because you only bought games you knew you were going to like, but pirated whatever garbage you came across.