PrxjX's Xp Optimizer is a lightweight client-side Minecraft 1.21.11 Fabric mod that lets you automatically throw Experience Bottles by simply holding down your use button instead of repeatedly clicking. The mod includes a fully customizable CPS (clicks per second) slider, allowing you to adjust how fast XP bottles are thrown anywhere from 1 CPS to 100 CPS, with a default speed of 8 CPS. PrxjX's Xp Optimizeris designed to make enchanting, repairing gear with Mending, and XP farming much faster and more convenient while staying smooth and easy to use through an in-game config menu.
this is what it looks like when you change the speed of how fast you throw the xp
this is how much xp is left on the ground on a slow setting after 2 seconds
this isnt maximum speed but its to show that even without maximum speed it can throw over a stack per second
this is what it looks like when you find it