When Tripwire added Valve-crates to KF2, while it was on early beta and MONTHS without a update, I already knew it would crash and burn.
And no PC optimization/bad PC ports seems like a recurring thing with most triple A devs now. I still wonder how that is even a thing since the PS4 and Xbone are basically PCs at this point and all the development is made on a fucking pc, some demos even run on PCs to showcase these oh-so-pretty teasers at E3 and such.
I remember when Warner Bros just gave up on Mortal Kombat on PC since for them it wasnt worth the time/money to fix all the crap that was happening, same with Batman Arkham Knight. They did fix it later, probably someone help them at gunpoint, but I heard it didnt fix all.