Hacking Paper Mario stuttering with DML

[dsk]

I keep getting random stutters in PM TTYD, just visual, audio continues to play fine, but it's still a hinder because of the timed nature of the battles...
Card is formatted to Fat16 64kb clusters, any idea what is causing this?

 

[dsk]

Anyone? About 10 hours into the game but it still messes up my action commands :<
Also, something funny happened. In Glitzville, after talking to Grubba and him asking you to follow, everytime the game stuttered he would appear a bit ahead of where he was before but Mario would be in the same position. Happened until he was off screen but everything played perfectly otherwise.