I have the same issiu with my save and loading times. When i started the game a quicksave was instant, now i'm 36 hrs in the game, my quicksave takes 10 seconds.
The same is for loading times when i change zones.
Here is a link with my savegame folder and the temp one too.
https://drive.google.com/open?id=0B-_Bil1ZXgt6fkI0WW1hNUp6Vi1iQTJhLXFtdVNkWmJvcTlTVUtlUmtJbjRxNVZ0Wm14Nk0&authuser=0