fortnite fps drops

Ever since the new update 15.40, i have gotten freezes, fps drops and stutters when in the in-game lobby, gunfights, and stacked creative games, Its only fortnite and Ive tried dx11 dx12 performance mode PC Specs and Peripherals Ryzen 5 2600x Gigabyte B450M DS3H Zotac RTX 2060 Crucial Ballistix...