Dolphin is an emulator that emulates a fairly modern console. Because of that, Dolphin requires very powerful CPUs in order to take what the Wii/GC is doing and do that on the computer you're using in front of you.
Your processor is underpowered to the point where very few games, if any, will be playable. Graphics card is more than powerful enough for this, it's all on your processor being so weak.
Your processor is underpowered to the point where very few games, if any, will be playable. Graphics card is more than powerful enough for this, it's all on your processor being so weak.