In that respect the engine appears less optimised than DICE's Battlefield 4 and the previously far less demanding
Call of Duty games, with Infinity Wards's liberal use
of tessellation perhaps being responsible for bringing the hardware to its knees while it pushes a substantial amount
of advanced shader effects on screen at the same time - an issue that also
plagued Crysis 2 a few years ago after Crytek released a patch taking advantage
of DirectX 11 upgrades throughout the
game.