Random CPU lag

Product: Star Wars Battlefront II
Platform:PC
What is your issue related to? General
Summarize your bug In some matches, the game starts to stutter extremely while moving. The stutter is definitely not caused by the GPU, like you can see in the video below. It seems to be connected to the CPU, which is really strange, since it isn't even running near 100% usage! Also, this issue seems to appear completely random and any map can be affected. Like I said, it doesn't happen every time, so it also isn't connected to the map or something.
What is your gamertag/PSN ID/EA Account name? III_JJB_III
How often does the bug occur? Occasionally (10% - 49%)
Can you tell us the date (MM/DD/YYYY) that you saw the bug? 19.11.2017
What time did you see the bug? (HH:MM AM/PM) around 11 PM
In what game mode did the bug occur? Galactic Assault
What is your time zone? ECT - GMT + 1:00
Steps: How can we find the bug ourselves? It's not really possible to reproduce this bug on purpose, since it seems to appear completely random.
What happens when the bug occurs? The game starts to stutter and freezes every two or so seconds which makes it quite hard to enjoy it.
What do you expect to see? Hoping for a fix. It's quite annoying as you might guess.
Please select your region Europe
AMD or Nvidia Model Number GTX 670

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Here's a video showcasing this issue. Also take a look at the fps counter at the top right, you can see the drops in the frame rate caused by the CPU there.

https://m.youtube.com/watch?v=7oAvhCpaVD0

It can be much more extreme than this video is showing, but I didn't have time to record a better one.

System: GTX 670, i5 3570k (4,4GHz), 8GB Ram, Windows 10

Edit: Somehow this post got messed up, will fix it later.