private Map<UUID, Vector> lastLocation = new HashMap<>();

public enum PlayerTeleportFlag {
    X,
    Y,
    Z,
    Y_ROT,
    X_ROT,
}

@Override
public void onEnable() {
    // Plugin startup logic
    getServer().getPluginManager().registerEvents(this, this); // Register events

    ProtocolLibrary.getProtocolManager().addPacketListener(new PacketAdapter(this, PacketType.Play.Client.POSITION,PacketType.Play.Client.POSITION_LOOK) {
        @Override
        public void onPacketReceiving(PacketEvent event) {
            lastLocation.put(event.getPlayer().getUniqueId(),new Vector(event.getPacket().getDoubles().read(0),event.getPacket().getDoubles().read(1),event.getPacket().getDoubles().read(2)));
        }
    });

    ProtocolLibrary.getProtocolManager().addPacketListener(new PacketAdapter(this, PacketType.Play.Server.POSITION) {
        @Override
        public void onPacketSending(PacketEvent event) {
            Set<PlayerTeleportFlag> set = event.getPacket().getSets(EnumWrappers.getGenericConverter(MinecraftReflection.getMinecraftClass("world.entity.RelativeMovement"),PlayerTeleportFlag.class)).read(0);
            if (!set.contains(PlayerTeleportFlag.X)) {
                event.getPacket().getDoubles().writeSafely(0, event.getPacket().getDoubles().read(0) - lastLocation.getOrDefault(event.getPlayer().getUniqueId(),event.getPlayer().getLocation().toVector()).getX());
                set.add(PlayerTeleportFlag.X);
            }
            if (!set.contains(PlayerTeleportFlag.Y)) {
                event.getPacket().getDoubles().writeSafely(1, event.getPacket().getDoubles().read(1) - lastLocation.getOrDefault(event.getPlayer().getUniqueId(),event.getPlayer().getLocation().toVector()).getY());
                set.add(PlayerTeleportFlag.Y);
            }
            if (!set.contains(PlayerTeleportFlag.Z)) {
                event.getPacket().getDoubles().writeSafely(2, event.getPacket().getDoubles().read(2) - lastLocation.getOrDefault(event.getPlayer().getUniqueId(),event.getPlayer().getLocation().toVector()).getZ());
                set.add(PlayerTeleportFlag.Z);
            }
            event.getPacket().getSets(EnumWrappers.getGenericConverter(MinecraftReflection.getMinecraftClass("world.entity.RelativeMovement"),PlayerTeleportFlag.class)).writeSafely(0, set);
        }
    });

} 

+                        // If a Plugin has changed the To destination then we teleport the Player
+                        // there to avoid any 'Moved wrongly' or 'Moved too quickly' errors.
+                        // We only do this if the Event was not cancelled.
+                        if (!oldTo.equals(event.getTo()) && !event.isCancelled()) {
+                            this.player.getBukkitEntity().teleport(event.getTo(), PlayerTeleportEvent.TeleportCause.UNKNOWN);
+                            return;
+                        }