@bluecrown You should take a look at the Docs and do some research on the forums regarding the specific emulator you are using. I don't run any playstation emulation, but I noticed there are least three (3) different PS1 emulators alone!
If you are going to ask questions about performance, do your research first, try suggestions in the documentation, and for heaven's sake, if you end up asking about something specific, don't just mention the name of the game you are plyaing--you also gotta describe in detail what emulator you are using, and depending on its capabilities, what settings you are using etc.
That said, perhaps with more detail, someone will add their experienced answer here, although this thread was about YouTube, so. . .