Downloading "ISO" or "CSO" files from unofficial sites can expose your device to malware. Many sites claiming to offer "FIFA 17" or "FIFA 18" for PSP are using clickbait titles to host modified versions of older games. Performance:
If you want to play a modern-feeling football game on your PSP or an emulator (like PPSSPP), consider these safer paths:
The PSP was a revolutionary handheld console in its time, offering a unique gaming experience that was both portable and enjoyable. FIFA 17 on PSP was a compact version of the game, featuring many of the same gameplay mechanics and modes as its console counterparts. The game's compact size and portability made it an attractive option for gamers on-the-go, allowing them to play soccer matches and manage their teams in a fun, condensed format.
. These mods update the rosters, kits, and splash screens to mimic the 2017 season. Understanding FIFA 17 "PSP" Downloads The Reality of Mods
Look for reputable fan communities (like those on YouTube or specialized forums) that provide "Roster Updates" for FIFA 14.