Just remember to save often. Because when a patch breaks, it breaks spectacularly.
The PS2’s Emotion Engine is notoriously complex to emulate. Rendering twice the frames requires nearly double the CPU power. A budget laptop that runs Persona 4 at native 30 FPS will choke on a 60 FPS patch. You typically need a desktop CPU with a single-core performance of at least a 6th-gen Intel i7 or a modern Ryzen 5. pcsx2 60 fps
Navigate to or Cheats and check the box for the 60 FPS mod. Just remember to save often