The problem started with me even 3 days ago because I changed my graphics card 3 days ago (from a GTX 950 to a GTX 1050 mini mini) since then it started with the fps drops.
So I have in the menu when I'm running and other CPU usage of about 70-80%, but as soon as I start to build, then the CPU usage is at 100% and I have fps drops from (capped fps up 120) 120fps to 60-80fps and you can feel it right and so I can't play sensible.
The problem I have only in Fortnite, in e.g. GTA, csgo is not the case
What I've already done: Windows 10 booted, drivers reinstalled with DDU, bios resettet and everything is up to date
GPU: GTX 1050 mini mini 4GB
CPU: I5 7400 3.0GHz
Ram: 8GB
Did you uninstall and reinstall Fortnite?
Yes, already 2 times
Look in the Task Manager, which programs or applications your CPU - load so much in the height, if you have started the game.
Everything takes Fortnite (70-90%), the rest takes system interruption and system
Unfortunately, I could not find any effective help for this problem on the web. How does Fortnite work, if you set all graphics details to minimum at 120 FPS Lock?
I already have everything at its lowest
Unfortunately, I can't help you in this game for troubleshooting.