Drag each of these folders into Aemulus. Put base package at the very bottom of the load order.

Enable the base package and any addons you want (Yes, 2K is higher quality than Base, but both are needed)

Set the Textures Directory in Aemulus to wherever your "pcsx2/textures/SLUS-21621/replacements" is

Build.

Alternatively, you can paste the DDS files in the replacements folder manually. It's MUCH faster, but less clean.

In PCSX2, set your renderer to Vulkan.

In Graphics -> Rendering, set Texture Preloading to Full (Hash Cache)

In Texture Replacement, enable Load Textures and Async Texture Loading.

If using PCSX2 1.7 AVX2 Qt, enable HostFS (Settings -> Emulation -> Enable Host Filesystem), run the ELF (Refer to "What is an ELF?" image), close it, then run the ISO using fast boot. Mods will launch alongside P3HD.