After installing The Sims 3 PKG 1.05, also install the “Disc Load Lag Fix” mod (available as a separate SPRX plugin for CFW users) – this completely eliminates texture streaming stutter, making the PS3 version finally playable like on PC.
The Sims 3 on PS3 had several patches, but the most sought-after update is . the sims ps3 pkg upd
Then, someone on a long-dead forum discovered the truth: After installing The Sims 3 PKG 1
: If you experience lag after updating, clearing cache files like CASPartCache.package and scriptCache.package from the game data folder can help the game run faster. Managing Custom Content (.package files) the sims ps3 pkg upd