Your device uses an older, budget processor that only supports 32-bit instructions.
Even though your chip is capable of 64-bit processing, the 32-bit software environment prevents 64-bit apps like the official Dolphin Emulator from launching or even appearing in your Google Play Store. How to Check Your System Architecture dolphin emulator android 32 bit apk repack
If you manage to find and run an ancient, archived 32-bit build of Dolphin (such as versions from early 2015), the gameplay experience will not be functional by modern standards. Your device uses an older, budget processor that