Xp Bottle Optimizer
ModOptimizes XP bottle throwing client side to be instant like zero ping.
Type
Mod
Modrinth Downloads
24,632
Modrinth ID
c5VHeSai
Last Updated
Aug 28, 2026
Description
XP Bottle Optimizer
Makes XP bottles feel more instant and responsive on the client side.
When throwing XP bottles on servers, the bottle can feel delayed because your client has to wait for the server bottle to appear first.
XP Bottle Optimizer helps by showing a client side XP bottle instantly, making XP bottle throwing feel smoother especially when you have ping.
Works across 1.21 - 1.21.11 in the same jar (1.21.X)
Requires:

What it does
When you throw an XP bottle, XP Bottle Optimizer shows a client side XP bottle instantly instead of waiting for the server bottle to appear first.
This helps XP bottles feel cleaner and more responsive on servers, especially if your ping makes bottles look delayed or weird.
The server still controls the real XP bottle, real XP drops, inventory usage, cooldowns, bottle breaking, and all real server behavior.
This mod does not give extra XP, does not duplicate bottles, does not make XP appear early server side, does not change bottle speed, and does not bypass the server.
It only makes the visual side feel smoother while the server stays in control of what actually happens.
works simular to my other mods
XP Bottle Optimizer also reduces duplicate delayed throw sounds when the real server sound comes in after the predicted client side throw.
This helps keep XP bottle throwing feeling fast without making the sound messy or doubled.
There is also server opt out support, so servers can disable XP Bottle Optimizer if they do not want players using it on their server.
This mod is client side, but if a server opts out then the optimizer will turn itself off there.
if you want the opt out just make a ticket in the discord!
XP Bottle Optimizer is only a visual responsiveness mod, so don't worry about it changing how XP bottles actually work server side. Throwing, inventory, XP drops, bottle breaking, and real XP bottle behavior are still handled by the server like normal.
Compatibility
Mod Loaders
Game Versions
Recommended Gear
AffiliateHardware and extras that pair well with this mod.
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Screenshots
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