Time progression is set to normal. I played around with a few settings in the nvidia control panel and it is improved but still doesn't seem very smooth to me. I kept lowering settings until I tried high on track settings, medium on texture, medium player, medium opponents (and this has been with just myself on track, no AI) billinear or possibly trillinear, 2x AA, prerendered frames are set to 1, fps is 110, and pretty much all other AA and texture settings off in Nvidia control. It still seemed like perhaps there were microstutters, or at least trackside objects seem strange or distracting once going up the hill. Also with the settings this low the track boundary lines were super blurry. I don't have a high end system, but other tracks in AMS seem easier to cope with running mostly high settings and 8x csaa. I also have all special effects and shadows disabled. Also, AMS seems to run as well or slightly better perhaps than SCE on most tracks, but here it is the opposite, I can run mostly high settings on SCE and it runs noticeably nicer than the low settings do on AMS. I am not sure if there is any issue, or perhaps with tracks being updated to AMS standards they are a little more challenging on a lower system like mine. (core 2 quad q6600 2.4 8gb ram and a gtx560ti)
Of course this is only a concern for me if we switch to AMS for the final race.
i am happy .......i love suzuka , and put in a good quali lap to start 4th .....in the race there was a lot of confusion , as people were disconnecting or dropped to back ....but i was able to run a consistent pace and look after my tires as well in the first stint , and after my pit stop ,i had my sights on 2nd , but had an unfortunate spin ...so settled for 3rd ! 
