Both seem to be from Dolphin. I just searched the web for "UseDiscordPresence" and found this: https://forums.dolphin-emu.org/Thread-mkw-stuttering
Alas, I have no experience with Dolphin, so I can't help you further with your problem.
No one has replied
@Capeman Just remember, once you buy the systems. You have to buy a $100 arcade stick and $200 games
@decoherent might be a bad microsd. I've had that happen on junk USB sticks. Try another microsd to verify the problem.