What are you using to run the emulator (e.g., Android phone, PC, iOS)?
A 10 GB console game cannot be compressed into a working 200 MB PSP file. True data compression has strict technical limits.
This article will explore the reality of playing a Mortal Kombat game from this era using the PPSSPP emulator, explain what "highly compressed" files actually are, and guide you on how to do so safely and legally while avoiding common pitfalls.