Well, we're still having the same issues for Intel Pentium G3258.
The game has been running just fine from 1.1 to 1.6 updates. I had a constant 1080p@60fps with a GTX 970.
Since 1.07 and 1.08, th game has been a pain to be played. In fact, the game runs smoothly, but every 5 to 10 secondes...