Unsadisfactory frame rate. Software, hardware or setting?

[Anti-Ultimate]

You will have to see for yourself how long you want to keep it. If you can afford to get a new processor anyways go for it. But if you want to keep this little shit for a long time, I suggest you only go for your sweet spot, Dolphin will run most games at fullspeed on 4.2Ghz regardless, even with LLE