Have you found a working partial patch? Let the community know in translation forums — just don’t expect a “perfect” release anytime soon.
The PSP version of School Days is notoriously large (it is a dual-layer UMD). This can cause lag or loading issues on original PSP hardware (PSP-1000/2000/3000). school days iso psp english top
The PSP hardware (actual console) struggles with School Days because the game streams video files directly from the UMD. Loading times on a real PSP can be 15-20 seconds per choice. Have you found a working partial patch