increased connection lag with bukkit?

While waiting for bukkit to update for 1.2.3, i switched to vanilla. While playing on the vanilla server, players who normally got 1-2 bars on the bukkit server got 3-5 bars.

I was wondering if this can be fixed (by either installing or uninstalling a plugin)



The lag occurs with any build of craftbukkit.
running Java 7 with 5GB ram and I5 processor.
connection speed: 25/1.5 (yea, upload speed is poor, i know)
ping: ~20
list o' plugins:

Code:

AutoAnnouncer
BKCommonLib
BukkitNyan
CatFacts
ChatManager (disabled)
ChestShop
Citizens
CraftBukkituptoDate
Democracy
DragonShouts
DragonTravel
Essentials
EssentialsChat
EssentialsGeoIP
EssentialsProtect
EssentialsSpawn
GiftSend
HawkEye
HeroicDeath
JailLikeHell
LagMeter
LetItRain
Lockette
Love
Maintenance_mode
MinecraftViewer
Modifyworld (disabled)
MuteMan
Nocheat
Nolagg
openinv
Orebfuscator
Pail
Pailplus
PermissionsEX
Restarter
Seats
SpoutPlugin
StopLookingAtMyPLugins
SuperPermsBridge
SupplySign
TacticalBacon
TeslaCoil
Tim
Troll
VanishNoPacket
Vault
VoxelMimic
VoxelUpdate
Warn
WolvesOnMeds
WorldBorder
WorldEdit
WorldGuard

i suspect problem might be caused by:
NoLagg
Orebfuscator
The shit load of plugins i have

EDIT: This might just be a visual glitch, because when i polled the players, nearly all of them reported no lag.

 

Bukkit does not update the connection bars.

 

Code:

Bukkit does not update the connection bars.

When they came out, they disabled it because it was constantly pinging -causing lag. Your player will say 5 bars and everyone else should say one (to you).