Massive FPS drop randomly

Platform:
Windows 10 Home Edition x64

Steps To Reproduce:
Just play and it randomly happends

Host or Client:
Host and Client

Players in your game:
1,2,3,4

Specifications:
It happends when i solo play or team co-op. It just randomly drops the fps like its going to crash and then runs normal again for a 2 or 3 minutes and then drops again. Makes game unplayable. I have no other problem with any other game regarding FPS drop.

PC Specs:
Notebook Alienware 15 R3
i7-7820HK CPU @ 2.90Ghz
16GB RAM
Nvidia GTX 1070 8GB

Have the same issue, FPS stutters every few seconds, from 90 to 20 in a split second.