the ppsspp emulator (portable playstation) has been updated with new best in terms of speed:
OpenGL backend now properly multithreaded, giving a good speed boost.
Various Vulkan performance improvements (like #10911) and memory allocation fixes.
GPU command interpreter performance improvements (#10658)
Various fixes for app switching and widgets (#10855) on Android
Bugfixes and some performance improvements in the ARM64 JIT compiler and IR interpreter
Shader cache enabled for Vulkan
Multiple iOS fixes, including JIT (#10465) and file browser (#10921).
Improved compatibility on Mac (#10113)
Texture replacement ID bugfix (note: some textures from 1.5.4 may become incompatible)
Adhoc multiplayer fixes (#8975)
Vulkan support on Linux/SDL (#10413)
I've been testing it on android and it really works a lot better than previous versions!
Is it possible to port it to Batocera? it would be crazy