In the context of the PPSSPP emulator, "highly compressed" typically refers to the use of specific file formats and data-stripping techniques:
Relive the intensity of World War II on your mobile device or PC with Medal of Honor: Heroes medal of honor heroes ppsspp highly compressed exclusive
We tested the highly compressed exclusive file on three devices: In the context of the PPSSPP emulator, "highly
: You might need to tweak PPSSPP's settings to get the best performance out of the game on your device. medal of honor heroes ppsspp highly compressed exclusive