At the most inopritune times, like in combat or in the skywars, I get kicked for having to many packets :-:... I lost 7 sets of prot 4 on kitpvp...
This is not a bug with the server, if you get kicked out of a server for "Too many packets (lag)" that means you were just internet lagging, not frame rate lagging. You might want to try to get closer to your modem (if your far from it) or turn it off and on. Hope it helps, if it doesnt, just get a better modem.