Adjusting these internal settings ensures you aren't connecting to the wrong data centers.
Use faster providers like Cloudflare (1.1.1.1) or Google (8.8.8.8) . While this doesn't directly lower in-game ping, it can improve initial connection stability. How To Lower Ping & Fix Packet Loss In Fortnite...
These steps are the most effective ways to stabilize any connection. Windows might be the culprit.
If you're still experiencing spikes, Windows might be the culprit. How To Lower Ping & Fix Packet Loss In Fortnite...