PPSSPP natively reads .cso files. A CSO is a compressed ISO. You can use a PC program called "CISO" to compress your 1.5GB ISO down to 600MB without losing quality.
: Some creators use footage from the PS5 version and overlay PSP-style controls to make it look like it's running on an emulator. Real God of War Games for PSP God Of War Ragnarok Ppsspp Highly Compressed BEST - Google
: Often cited as one of the best-looking games on the PSP, bridging the gap between GOW 1 and 2. 2. Legitimate Mobile Options for PPSSPP natively reads
Disclaimer: This blog is for educational purposes. Emulate only games you own. God of War is a trademark of Sony Interactive Entertainment. God Of War Ragnarok Ppsspp Highly Compressed BEST - Google