Ironically, having the ping counter on can slightly increase system overhead. Turn it off in the Game UI tab once you've verified your connection is stable.
Change your DNS to Cloudflare (1.1.1.1) or Google (8.8.8.8) . Many pros find Cloudflare provides a more stable, lower-latency connection. How To Get 0 Input Delay & 0 Ping Fortnite Chap...
Ping is the time it takes for data to travel to Epic's servers and back. Ironically, having the ping counter on can slightly
Manually select the server region with the lowest "ms" in your Game settings rather than leaving it on "Auto". How To Get 0 Input Delay & 0 Ping Fortnite Chap...
This is the most effective change you can make. Avoid Wi-Fi entirely to eliminate packet loss and jitter.