Zelda WW lag

[ProfPhoenix]

So, I recently Downloaded Wind Waker after seeing some videos mentioning it. Unfortunately for me, I run into some lag every time I try to play it, I run at ~10 FPS just at the start of the game. I admit my PC isn't all that good, but I think it can do a bit better than this. Suggestions?

PC Specs:
Operating System: Windows 8 x64
Processor/CPU: AMD E1-2500
Video Card/GPU: AMD Radeon HD 8240
Memory/RAM: 4GB