Yeah, Apple hardware don't seem ideal for LLMs that are large, give it a go with a dedicated GPU if you're inclined and you'll see a big difference :)
My RTX 5090 can fit OSS-20B but it’s a bit underwhelming, and for $3000 if I didn’t also use it for gaming I’d have been pretty disappointed.
[1] https://www.idealo.de/preisvergleich/OffersOfProduct/2063285...