FPS suddenly breaks down to 2-4 FPS on the Supercarrier

[Nalfeyn]

If I'm playing on the supercarrier (George Washington) my fps is quite average. I'm having fps between 60-100 without VR. With VR I hang about 26-36 fps on the supercarrier, which is quite logic.

 

Suddelny, fps totally breaks down to about 2-4 fps for atleast 10-15 seconds. Then it suddenly goes up to the numbers above.

 

I'm having this problem on an empty as well on a full carrier (static objects).

And I do have this problem in normal and on VR, so I guess its not a VR related problem.

 

When I'm playing without the carrier I dont have this sudden break down.

 

I already tried to delete my shader cache with no results.