Micro Stutters Despite Stable FPS (Patch 1.117.221)

I saw this in my game after the 8/19 update as well, just tiny little stutters as I'd pan and rotate around the lot while playing.  I had the same feeling as AxelRogat, it would happen every couple seconds as if some little process had to run in the background.  Even after reading the entire thread puzzlezaddict linked I had no idea what I was supposed to change and where/how to find it, not that I'd really be comfortable editing code to begin with.  Instead I changed my settings to DirectX9 and at least for me that resolved the issue, everything's moving smoothly again.