Hi, I just got NFSMW and it played perfectly fine the first time I installed it. Took a break, played WoW and then a few hours later installed MiJ PS3 drivers so that I could play some more NFS with my PS3 controller.
The game again runs perfectly fine until I get to the world. Loading screen (into the game), and the settings menu run perfectly fine. It seems that whenever I'm in the 'world' state where you can free roam with the car the game stutters at almost 1FPS. I don't know what's causing this, and am trying to find a solution. I've already tried restarting the computer, re-installing the game and even exiting MiJ to see if the issue will be fixed.
(For example, if I load the game it'll run perfectly fine. Then when I get into the game world, it lags at about 1FPS. Escaping and entering the settings menu brings the game back at full speed. Returning back to the game world lags the game again.)