: Level 9 is the highest, though it may cause minor lag or longer loading times on original PSP hardware. Level 5–7 is usually the "sweet spot" for performance and size.
| Aspect | Full ISO | Compressed CSO | |--------|----------|----------------| | File Size | ~1.2 GB | ~300 MB | | Gameplay | 100% | 100% (same) | | Menus & Modes | All present | All present | | Loading Times | Normal | Slightly longer (negligible on PPSSPP) | | Commentary | Multi-language (large) | Usually English-only or removed | pes 2012 psp iso highly compressed