Just ripped DK Country Returns- kinda slow and MAJOR sound errors

[Irrelevant_pelican]

Operating System: Windows 7 32 bit
Processor/CPU: Intel Core i5-2500S CPU @ 2.70 GHz
Video Card/GPU: AMD Radeon HD 6770M
Memory/RAM: 4 GB (2.23 GB usable)
Dolphin Revision Currently Using: Dolphin 3.5

Hey guys. I just ripped Donkey Kong Country Returns with my modded Wii. I used Cleanrip. At the final stage, it said "Not verified with redump.org."

Wasn't sure what to do at this point so I decided to try it on Dolphin.

It's running at around 60%, whereas Mario Galaxy and Skyward Sword run at around 100% all the time.

Also, the sound is terribly messed up. It crackles a lot, and I heard TONS of random noises/sound clips, voices, sound effects, seemingly endless.

Any ideas?

Here are my settings: http://imgur.com/a/JxXhM

Tried changing 2x under the enhancement tab to 1x, still same speed/audio issues.