After trial and error, here are the settings that gave me a consistent 30 FPS (the game is capped at 30 on PS3) with minimal artifacts:
CPU:
GPU:
Advanced:
You need a legal copy. Dump your PS3 disc or download your PSN license. You are looking for the BLUS31407 (US) or BLES02037 (EU) folder structure. Plants Vs Zombies Garden Warfare Rpcs3
Even with perfect settings, you will encounter problems. Here is the current state of emulation as of 2025: After trial and error, here are the settings
The sticker shop and character customization menus run at 15-20 FPS. Solution: This is an emulation artifact. Lower resolution scale to 100% before shopping, then raise it back for gameplay. Advanced: You need a legal copy