Is this normal?

In the last 24 hours I've noticed a performance drop in my laptop (or at least I think I have). It started last night when I was trying out Archeage which is an MMO and was running at extremely high FPS but stuttering and pausing even with V sync on, just to add, the same isn't happening on my wifes identical laptop. The problem is I seem to be getting occasional stuttering and short freezes now (this never happened in the first few days I had the laptop.

Dark Souls 3 for example had never froze or stuttered but now I seem to occasionally drop to 30/40 frames from 60 and pause or stutter for a brief moment.

I recorded performance over 25ish minutes on DS3 and have posted below, does anything look out of the ordinary?