Yes. I have the same issue during cutscenes too (on PC). No lag in MP/arcade and once a campaign mission is fully loaded. But the game is stuttering and lagging in campaign cutscenes and at the beginning of campaign missions as long as the game is still loading.
Same here, and I see that it also happens with different hardware and even higher than mine, so I don't think it's only a matter of computer's power, it must be something that is not well implemented in the game ( also because in MP I have zero stuttering )
