Super Mario: Star Road Slowdown

[GoogleCodeExporter]

What steps will reproduce the problem?
1. Download the Pre-modified .z64 for Super Mario: Star Road
2. Load it into Wii64 on a First Generation 4.3U Wii

What is the expected output? What do you see instead?
When using the Mupen64 core in OpenEmu on a Mac Mini, Star Road runs smoothly. 
On the Softmodded Wii, frames slow down and sound stutters. 

What version of the product are you using? On which system and loader?
Beta 1.1. First Generation 4.3U Wii using Homebrew channel that was loaded 
using the LetterBomb technique.

Please provide any additional information below.
I was curious if other roms gave me a problem so I tested Super Mario 64 and 
Diddy Kong Racing. Both of which seemed to run fine. All three I was loading 
off of a 32Gb SDHC card.

Original issue reported on code.google.com by [email protected] on 20 Mar 2014 at 5:45