As you can see, "highly compressed" is not just marketing speak. By switching to RVZ, you can effectively the number of games you can store on your hard drive or Steam Deck.
A game like New Super Mario Bros. Wii can be shrunk from 4.37 GB down to just 350 MB. Best File Formats for Highly Compressed Dolphin Games dolphin games highly compressed
What's the best file type for gamecube/wii games for dolphin on mobile. As you can see, "highly compressed" is not
Go to Config > General and check "Enable Dual Core" to split emulation and decompression tasks. As you can see
There is no title screen. There is no "Press Start." There is only blue.