Even on a device powerful enough to boot the 32-bit build, the performance is abysmal. The 64-bit JIT compiler is roughly 2.5x faster than the old 32-bit ARM JIT.
Developing a 32-bit emulator for complex 128-bit consoles (GameCube/Wii) presented monumental challenges. The GameCube’s "Gekko" processor and the Wii’s "Broadway" CPU were architecturally complex, and accurately translating their instructions to run on a 32-bit ARM processor required immense overhead. 32 Bit Dolphin Emulator Android
