I run the lowest custom settings (25% scaling and everything disabled) on my i7-4600U + Radeon HD8750M laptop, and get a good 48 FPS almost everywhere except Calais. I got only 2 FPS on Calais, and most of the times, I got flipped over before realizing what was happened due to this lag.
If any of you able to get 60 FPS in Calais, what's your laptop specifications?