Frame Drops in FN?

I've been playing very drastic frame drops on Fortnite for a couple of days. I've never had that before, but I do not know why that is

I would say that I have a very solid PC:

Ram: G.Skill Aegis 3000MHz (2x8)

Graphics: Gigabyte Geforce RTX 2060 OC

Processor: AMD Ryzen 5 2600

mainboard: MSI B450M Pro-VDH V2

I play the following settings:

3D resolution: 100%

View Distance: medium

Shadow: Off

Anti-Aliasing: Off

Textures: Low

Effects: Low

Post-Processing: Low

Motion Blur: Off

This problem has probably everyone, Fortnite is scrap

:)