Like air said, everyone has different internet. You also have to consider that some people are running more things on their internet then others. Like myself, I am running 2 forums for people, my xbox, 5 minecraft servers (Bungeecord), netflix on 3 TV's, etc. With all that my internet is still strong. You can also open up some torrent, upload a video, or just try running some things in the background to help the lag. Make sure you lower the delay as well, the lower is it, the more lag you will receive. It's basically trial and error. Sometimes I can get away with lagging into a lobby with 5 kb, 2 ms delay and others I need to go to 13+.IF YOU LIVE IN U.S.A AND KNOW THE BEST SETTINGS FOR UDP UICORN, PM ME!