Sometimes stuttering in Fortnite?

Have a Ryzen 5 1600 6 cores 12 threads and a gtx 1060 6gb. All settings except Shadow are set to max. But sometimes I freezed the game for me. What could be the problem

Maybe the memory:-)

Have 8gb

I think you can't prevent that. What you can taste is the settings all to minimum except 3D resolution very high. The resolution is then very good and it should be less jerky. But that it comes to short Freez is believable normal. Is that often the case?