Web links claiming to offer an ISO file specifically named "God of War Ascension PSP" are highly misleading. They are usually heavily modded versions (reskins) of God of War: Ghost of Sparta or Chains of Olympus .
Sony has released for the PlayStation 4, and the critically acclaimed 2018 God of War and its sequel, God of War Ragnarök , for both PS4 and PS5. These titles can be streamed directly to an Android device via Sony's PlayStation Remote Play (streaming from your own PS4 or PS5) or through a PlayStation Plus Premium subscription. The latter gives you access to a catalog of hundreds of games, including several in the God of War series, which you can stream directly to your phone without ever needing to download a massive file or configure an emulator.
If you experience lagging, frame drops, or audio clipping, adjusting the emulator's internal settings can dramatically improve performance. Try this optimized configuration: Graphics Settings
Here is the long, detailed explanation of why those links are fake, what you can actually play on your devices, and the complex (but possible) way to stream or emulate the real game on Android.
How to Play God of War Ascension on PC - RPCS3 Full Tutorial
Connect a Bluetooth controller (like a DualShock 4 or DualSense) to your phone for a seamless console experience on your phone screen. Stay Safe: Avoid Malware Scams
Emulating a PS3 requires a high-end PC with software like RPCS3 . Modern Android phones do not yet have the processing power to emulate PS3 titles. Real God of War Games for Android (via PPSSPP)
With the emulator installed and the game file ready, you are just moments away from playing.
Locate your downloaded file (usually in the "Download" folder). Extract the ZIP or RAR archive to reveal the .iso file.