Yeah, though obviously not possible to say if its down to the CPU or the patch, I'll have to say both. Still 15 FPS at times, but its much less noticable.
Couldn't even use a vehicle before and now, no problem. I've been to heavily populated areas too and fighting and again, no issues whatsoever with framerate.
Just got to fix the random disconnects from the EU servers, and the fact that I stink at PS2
Also looking forward to being able to crank up the settings, I want the particles and light shows that youtube has spoiled me with