If you’re playing any of the console versions of Fortnite, you just need to follow the internet connection troubleshooting steps. How to fix Fortnite lagging on PS4, Xbox One, and Nintendo Switch Be mindful of unwanted data charges that this may incur.Switch the network you’re connected to for one with a stronger signal strength.Reset your internet router and after it reconnects, test whether or not the problem is fixed.If you’re still having trouble, then the issue may lie with your internet connection. This will configure the game to run properly on your PC hardware. Click the symbol with three horizontal lines in the top right corner of the menu.Due to the PC platform offering players graphics options, the first step you should take is to ensure that the so-called “lag” isn’t actually a low framerate caused by running the game at high graphical settings.