If you are looking for the best way to handle BotW files for emulation, these points from various technical posts are the most useful:
Downloading WUX files for The Legend of Zelda: Breath of the Wild botw wux file download
: The safest and most legal way to obtain a BotW file for PC is to "dump" the files from your own physical Wii U disc using a homebrewed Wii U console. If you are looking for the best way
Now that you have your WUX file loaded, you need performance. Vanilla BOTW on Cemu runs poorly on integrated graphics. Here is the recommended setup. botw wux file download
However, if you’re interested in a about:
: Always use the latest version of the emulator for the best performance and compatibility. Optimizing Performance