Go into the in-game settings menu and reduce the frame rendering options or toggle off background stadium crowd animations to smooth out the frame rate. The Legacy of Retro Mobile Football
Instead of relying on the number "523," search for more specific, descriptive terms to find what you need. winning eleven 2012 version 523 link
If you can share where you saw the term "version 523" (website, video, forum), I can help identify the exact patch and suggest safer ways to find it. Go into the in-game settings menu and reduce