For the "HD Texture Pack" community, Ishiiruka is a godsend. Its memory management allows for loading massive 4K and 8K texture packs that would crash standard Dolphin due to RAM limits. You can literally turn Super Mario Sunshine into a game that rivals modern indie titles in crispness.
: It often "skips" high-accuracy emulation steps that are computationally expensive, resulting in significant speed gains on weak CPUs. Installation & Basic Setup Performance Guide - Dolphin Emulator Dolphin Ishiiruka Emulator