Many "corrupted archive" errors are actually compatibility glitches. Gnarly Repacks heavily utilizes updated compression formats that older software cannot interpret.
If you are facing specific RPCS3 performance issues after fixing the file, could you tell me your and GPU specs? I can suggest some settings to improve your FPS.
When initializing the extraction process, the file archiver requires every single numerical segment to be present in the exact same directory. If the software cannot locate a specific segment, or if a segment is corrupted, the extraction process will fail. Step-by-Step Fixes for the 7z.009 Error god of war ascension gnarly repacks7z009 fix