There's an option in the nintendont settings called 'unlock read speed' (or similar) which will make games load significantly faster. Most modern SD cards are class 10, which is already way faster than the maximum wii read speed. The SD card class is labeled as a number with a circle around it on the card itself, usually below the manufacturer logo, on the right.

What class is your SD card rated as? It's possible that the framedrops occur due to slow read speeds. I own wind waker and used to play it on my gamecube but it's been a while so I'm not sure if the game simply has framedrops from time to time, or whether it's an issue with your setup/nintendont settings. I haven't played many gamecube games outside of melee using a hacked wii. Also, with the simplified fighting controls, it's pretty easy for even your non-gaming friends to just pick-up and play.I'm not exactly sure why that happens. The toys in the machine represent games from Nintendo's entire video game history, and each can be viewed in 3D with a brief description. More characters and stages are unlocked as hidden objectives are met, and coins rewarded for playing in all modes can be spent on a capsule toy machine. You choose from the wealth of Nintendo characters like Mario, Bowser, Yoshi, different Pokémon, and even Link and then either fight through the single-player portion, featuring modes like Classic, Adventure, and Event Mode or battle it out with your friends in a four-player frenzy. Instead of knocking your opponent's health down, you knock him or her out of the battle field. The game is a Nintendo fighting game with different rules to it.

The sequel to HAL Laboratory's Super Smash Bros., which pitted Nintendo characters against each other, ups the ante by including more levels, more characters, and more game modes. Melee that looks and sounds a little more like a Nintendo 64 game!

Super smash bros melee iso