Here’s a concise review for (assuming this refers to a new version or variant of the Dolphin emulator optimized for a handheld device, possibly the Retroid Pocket 121 or a similarly numbered model):

You searched for "121 New," so you want the bleeding edge. Do not use the Play Store version (which is usually years old). Here is how to get the specific build.

. This is essential for playable framerates on devices that struggle with standard 480p emulation MMJR Hybrid Roots : It is essentially a custom build of the MMJR2 fork

Android users benefit from massive Vulkan backend optimizations. Games that previously required complex dual-core settings now run smoothly out of the box. Step-by-Step Setup and Configuration