Most files advertised as "Dolphin 5.0 for 32-bit" are either very old, modified, or potentially harmful: Official Older Builds
Forum user reports from 2018 confirm this reality. A user with a Snapdragon 625-powered device (which has 64-bit cores but ran a 32-bit OS) found that older 32-bit builds ran some games at less than 1 frame per second. A developer noted that even with the 32-bit builds, performance is "only half of the speed compared to running the 64bit jit of recent builds on the same device". They further clarified that the A53 cores found in such processors are very weak, capable of delivering only about 20 frames per second (FPS) on a 60 FPS game, even with the 64-bit JIT. Most files advertised as "Dolphin 5
The search is often performed by users who want to play backup copies. However: They further clarified that the A53 cores found
Once installed, open the app, but be prepared for a required setup process. Optimizing Dolphin Emulator for 32-Bit Devices Optimizing Dolphin Emulator for 32-Bit Devices