Paper Mario is problematic because of the Bounding Box techniques, which requires D3D11 or OpenGL 4.3 which are supported by NVidia GeForce 400 series and newer, AMD/ATI Radeon HD 5000 series and newer or Broadwell integrated GPUs (Intel HD Graphics 5300+). In addition OS X does not support bounding boxes because of lacking GPU driver support. Using newer versions of Dolphin with unsupported GPU, drivers and Operating Systems may causes glitches and softlocks.
So, there is not much that can be done about Paper Mario: The Thousand-Year Door without updating your hardware. However, Super Smash Bros. Melee do not require special emulation such as Bounding Boxes, MMU or Store EFB Copies to Texture Only. Well... Melee only needs EFB Copies to Texture in order to properly save in-game screenshots. Super Mario Sunshine will need EFB Copies to Texture disabled due goo issues. Other than a few minor issues, both games work pretty solid. Melee may run at fullspeed, the game is pretty light-weight. Sunshine may or may not run at fullspeed. EFB Copies to Texture disabled will most likely be your performance killer. And don't even think about it to use the 60 FPS code for Sunshine...
As said earlier, you better of having better hardware. Dolphin is one of the more demanding emulators available, but you probably already knew that prior to using Dolphin. Emulating the GameCube obvious takes more power than emulating the NES (assuming it is not a Cycle-Accurate).
So, there is not much that can be done about Paper Mario: The Thousand-Year Door without updating your hardware. However, Super Smash Bros. Melee do not require special emulation such as Bounding Boxes, MMU or Store EFB Copies to Texture Only. Well... Melee only needs EFB Copies to Texture in order to properly save in-game screenshots. Super Mario Sunshine will need EFB Copies to Texture disabled due goo issues. Other than a few minor issues, both games work pretty solid. Melee may run at fullspeed, the game is pretty light-weight. Sunshine may or may not run at fullspeed. EFB Copies to Texture disabled will most likely be your performance killer. And don't even think about it to use the 60 FPS code for Sunshine...
As said earlier, you better of having better hardware. Dolphin is one of the more demanding emulators available, but you probably already knew that prior to using Dolphin. Emulating the GameCube obvious takes more power than emulating the NES (assuming it is not a Cycle-Accurate).