Architecture emulation: The PS3 uses the Cell processor (PPE + SPEs) and a discrete GPU, which is difficult to emulate efficiently on ARM-based mobile SoCs.
Performance overhead: Accurate CPU/GPU emulation is CPU/GPU-intensive; mobile SoCs have limited single-thread performance compared to desktop CPUs.
Drivers and GPU features: PS3 shader models and GPU workflows don’t map cleanly to mobile GPU APIs (Vulkan/OpenGL ES), requiring translation layers that reduce speed and compatibility.
Memory and storage: Many PS3 titles assume more RAM and faster storage than typical mobile devices provide.
Thermal throttling and battery life: Sustained heavy CPU/GPU use on phones leads to throttling and significant battery drain.
If you search Google for "PS3 Emulator BIOS file download for Android high quality", you will find millions of links offering a PS3_BIOS.bin. These are almost always fake. Why? Because real PS3 emulation requires: Report: PS3 Emulator BIOS File Download for Android