I didn't actually think that this would be happening on the PS3 as well. I'm starting to think that all these issues are actually stemming from Limsa Lominsa itself rather than any congestion issues, or if it is congestion, then it's by far the worst there. I'm playing on the PC version and when I spent a very large amount of time in Gridania I only experienced a couple of crashes, but since moving on to Limsa Lominsa, I crash pretty much every other minute I spend in the city. Out on the field, I'm fine, but sometimes I crash as soon as I enter the city from the field... it's pathetic, really.