I still play games quickly because it is natural, I just have less time to play in general.. I have no clue how long Enslaved actually took but it took about a week for me; people said it was 6 hours, which is crazy considering I used to knock those games out in a single lazy day.
Actually, just yesterday I was looking at old PS1/PS2 saves and was amazed to see that it took 10+ hours for me to beat ZoE2 the first time. When I replayed it last summer it was around half of that.