So, at first i thought I was just imagening, but my loading times keep increasing.

I'm playing from an SSD, in the beginning, map changes were fast and loading times neglectible. 

 

Now, third  day playing, i'm progressing through Act II and the Loading Times are bothersome. Map changes take between 5-10 seconds, Initial loading of the game up to 20 seconds.

 

Am I the only one experiencing this?

No you are not alone. But feel yourself lucky, because my loading times are now at 55 seconds for every area transition.

 

Here is the thread for this issiu http://forums.obsidian.net/topic/72764-quick-saving-and-loading-times-increased-greatly-after-20-hours/