Runs at a near lock on 30FPS @ 1440p for me. Fantastic setting.
There's the occasional short dips to 29, and when the two people show up at the end I could make out a couple brief dips to 28 using FRAPS. Looks very smooth all in all.
AMD Radeon RX 480, stock
Intel i7 6700 @ 4.4Ghz max