I was having video stuttering in games and changed my hard drive to an external USB 3.0 1TB hard drive. Videos work fine now.
The only thing that happens, and it is only with this hard drive, is that after using it for some time within the first 1-5 minutes, and sometimes randomly later on, the ISO eject itself and the game says to insert the disc. Every time you remount the ISO on the WODE it autoejects itself. The only solution is to reboot the Wii and it may not happen. I have to do this a few times sometimes to get into a game and be able to play it.
This happens even when both of the WODE USB power cables are in the Wii. I don't know if it has enough power to work with this USB 3.0 HDD. It is an external laptop size hard drive without its own power cord.
Would getting an external USB 3.0 HDD with its own power cord solve this