how emulators struggle with frames per second so much?

Question

After the recent news of people running bloodborne on PC on a ps4 emulator at a massive 1 frame per second, I’m just wondering why they tend to struggle to run these games?

In: Technology

Answer 1

So when you play on your PS4, the PS4 is playing the game Bloodborne. When you play on an emulator, your machine is playing the game “Pretend to be a PS4” and that PS4 is playing Bloodborne.