Nahh, if the game is laggy it's because of the servers! I've played a few times and I gave up. The European ones aren't very good at all.
Whereas the game in general is better the using the PS2, load times and graphics have been improved. This is because the PS3 renders all graphics full screen instead of doing only half and stretching it the rest. Plus it forces anti-aliasing too so you don't have as many jaggies on objects