Nintendo Give Tips on Wii U Performance Issues
Some Wii U owners are experiencing slow performance and freezing with their brand new Wii U console – released in the United States on Sunday.
A statement on the site says “We are aware that users are experiencing load times when they launch or switch between applications. We are exploring ways to enhance features for consumers’ overall experience.”
Reset the system by unplugging the console from the wall socket
Make sure the system is up to date with available system updates