Right, back to the original question. First of all, if you're using savestates, don't - they mess up FF9 all the time. Secondly, with a PC like that, no plugin should be giving you performance issues. Are you using the correct FPS limit in Pete's? Be sure it's set to "FPS Limit," and set the limit to 50 for a PAL version or 60 for a NTSC version.