Well, if you watch the video, you'll see that the drops are only for a second or two.
Longer than that. The problem is that the frame drops occur while the player in the video is driving around, which means that the scene being rendered is constantly changing. So if the player plows through a street a zombies and then pulls into an empty alley, of course the frame drops will end.
Regardless, it doesn't change the fact that the Xbox version can't maintain a constant 30 FPS while the PC version can (on a decent rig).
Actually, I've played quite a few (most PC games nowadays are ports), and they all seem to have problems of some sort, such as driver issues, multiplayer issues, performance problems, microstutter, low FOV, poor controls, and bugs not in the console versions. When the bulk of the money is in console game sales, publishers simply refuse to spend the time and money to properly port and beta test a game for the niche PC market... I wish that wasn't true, I always took pride in being a PC gamer, but it's just the reality of the market right now.
I feel like your frame of reference is Steam forums, which is a poor frame of reference because that's where people complain the most. The people running games perfectly have no reason to post there.
Also... low FOV? Poor controls? When has a PC port
ever had a lower FOV than its console equivalents? Never. Conversely, PC ports often have the ability to adjust the FOV. And controls? I assume you're talking about poorly implemented mouse & keyboard controls. It's true that some ports (or games in general) just don't play well with M/KB. Thankfully, most ports support gamepads as well, in which case you get the
exact same controls as the console versions.
It's
extremely rare for a PC port to look, run or control worse than the console versions. Not all ports are perfect and many don't offer everything that PC gamers would want but they are almost never inferior to the console versions. In fact, the last example I can think of was the original RE4 port which shipped with no lighting effects. The new RE4 HD port? Way better than the console versions.
You're using the same broken logic that many people seem to use when judging port quality.
"What, the game drops below 60 FPS at 1080p!? What a shitty port! Stick with the console version that struggles to maintain 30 FPS at 720p!"
"This game has mouse acceleration while aiming?! What a piece of shit! Stick with the console version that has inherently imprecise analog stick aiming, complete with acceleration and smoothing! Also, ignore the fact that you can use gamepads on your PC if you really want to replicate console controls!"
"What?! I'm stuck with this shitty FOV and can't change it?! Worthless port! Stick with the console version that has the same shitty FOV that can't be changed either!"