Suggestion for improvement to file handling.
Since the games for this are HUGE. and the actual speed of file access if relatively low...
Why not offer the option to 7z THE ENTIRE game folder "AS-IS" and a layer that zips/unzips through that. level 5 or 6 compression would probably do wonders for the storage requirements and not overly tax the processor.
I could find/build a 7z for arm no sweat.
Just a thought.