DirectX 12 in PPSSPP?

[VIRGIN KLM]

I wanted to make a question regarding Vulkan/DX12 for quite some time now. Are there really PSP games that make so many drawcalls? I thought PSP did a small amount of them, in the realm of some thousands in worst case scenario. My point is I try to understand what games specificaly would benefit from it (like a top 5) and what is their specific weakness that the new API would help with. Mobile devices sound at first like they would benefit from it alot but at a second thought, the GPU department is almost never (if ever) the bottleneck factor and since we talk about a minimal amount of drawcalls that -I guess- pretty like any current device/API has no issue with 'em anyway. Now on the lower CPU overheard department I'm not exactly sure how that works in the case of an emulator that the original hardware is not made to work like a typical PC/mobile device so I'm not exactly sure if it -can- take advantage of the extra room it is given, and if it does, how much of an impact it's going to have. Now I may be missing alot of stuff here and I'd be glad to be educated and corrected if it's possible, because the concept of console emulators and new-gen APIs just frustrates me.