@OP: You're using a AMD FX-8350 which has low "Instructions per Cycle", a newer Intel processor will always be faster in single-threaded applications. Dolphin has both things it does on two seperate cores, so that's where the problem is. Your FX is pretty slow compared to an i5/i7 in most applications.
There isn't really a software fix for that. But I think I heard something about disabling the 4 other cores so you make the FX go 4 Core. I don't think it speeds it up but in theory it should (Since 2 cores share one module and they fight over ressources). Also, you WILL need to overclock.
If nothing helps, get an i5 and overclock that. Seeing as you got so much RAM why didn't you just go with 8GB RAM and the i5?
EDIT: Follow this guide: https://teksyndicate.com/forum/cpu/experimenting-amd-fx-8000-series/124202
There isn't really a software fix for that. But I think I heard something about disabling the 4 other cores so you make the FX go 4 Core. I don't think it speeds it up but in theory it should (Since 2 cores share one module and they fight over ressources). Also, you WILL need to overclock.
If nothing helps, get an i5 and overclock that. Seeing as you got so much RAM why didn't you just go with 8GB RAM and the i5?
EDIT: Follow this guide: https://teksyndicate.com/forum/cpu/experimenting-amd-fx-8000-series/124202