Hi.
Just like in the subject, basically.
I have http://www.asus.com/Notebooks_Ultrabooks/G71V/specifications/ with 4GB RAM and Windows 7 64bit (forgot to verify it on Vista, which I forgot to also have on this machine) ..which definitely should be enough. This slow-down appears every time when Erica needs to go somewhere. The turn takes 1-2 seconds (I would say it's around 3x too slow).
It's Steam version. Apart from this everything seems to be quite fine (I mean no crashes or other big slow-downs - although plenty of script-bugs - I have ~10 screenshots already) ;)
Greetings
Jacek
It might be worth tinkering with the quality settings when the game launches, see if running it on "Fastest" helps any with that. We'll also be putting out an update sometime in the near future (in the next few weeks or so) which should address some of her walking oddities.
I'm sure it's set to lower rather than higher, because mouse cursor becomes very erratic (and slows down noticeably) on anything "higher". But - thank you for an update. I quite possibly will be already after episode one, but any news about update in near-future is good news. :)