I already answered that question. Only a few items are not storeable via the .ini files. That thread I linked to tells you everything that can currently be stored. If it's not on there, it's not "storeable".
This is the first you've brought up the accuracy issue. The goo needs EFB set to RAM, which is already correctly preconfigured for SMS in the .ini file. If you open the graphics menu, however, you will override this setting if you have EFB copies set to Texture.
You haven't posted your hardware specs, so it's impossible for us to know if this is a hardware issue either. Plenty of people in the past have come here not knowing the hardware requirements for Dolphin but assuming their PC was up to snuff. You should at least fill out your HW info in your user profile just to make sure.
This is the first you've brought up the accuracy issue. The goo needs EFB set to RAM, which is already correctly preconfigured for SMS in the .ini file. If you open the graphics menu, however, you will override this setting if you have EFB copies set to Texture.
You haven't posted your hardware specs, so it's impossible for us to know if this is a hardware issue either. Plenty of people in the past have come here not knowing the hardware requirements for Dolphin but assuming their PC was up to snuff. You should at least fill out your HW info in your user profile just to make sure.