Bob's Hotbar Optimizer
Optimizes delay between switching hotbar slots.
About this Mod
Bob's Hotbar Optimizer removes the delay between switching hotbar slots that Minecraft has. This is done by making Minecraft process switching slots as soon as it receives the input. Normally, it waits until the next tick. Minecraft's slot processing works in a numerical order, from 1 - 9. If you're on slot 9, and want to switch to slot 6, you must wait for it to be processed in the next tick. This can be annoying in PvP as well as other situations.
Available Versions
How to Install Bob's Hotbar Optimizer on Your Server
Order Server
Order a Minecraft Java server with at least 3 GB RAM (4 GB recommended).
Set fabric Loader
In the panel under "Egg", select the fabric loader and matching Minecraft version (1.21.11).
Install Mod
Open the mod browser in the dashboard and search for "Bob's Hotbar Optimizer". Click "Install" – done! Alternatively, upload the .jar via SFTP to the /mods folder.
Compatibility
Mod Loaders
Minecraft Versions
1.21.11, 1.21.10, 1.21.9 (+5 more)
Server-side
✗ UnsupportedRecommended RAM
4 GB(min. 3 GB)Frequently Asked Questions
Bob's Hotbar Optimizer server crashes on startup – what to do?
Most common cause: wrong fabric version or insufficient RAM. Check the server log (latest.log) for "OutOfMemoryError" or "Mixin" errors. With Mado Hosting: ensure at least 3 GB RAM is allocated and the loader matches the mod version (1.21.11). You can switch loaders with one click in the panel.
Is Bob's Hotbar Optimizer compatible with fabric?
Bob's Hotbar Optimizer officially supports fabric for Minecraft 1.21.11, 1.21.10, 1.21.9. The Mado dashboard automatically detects incompatible loader combinations.
Server lagging with Bob's Hotbar Optimizer – how to optimize performance?
Recommended RAM: 4 GB (per 8 players). Use /spark profiler to check if Bob's Hotbar Optimizer consumes the most tick time. Common fixes: reduce server view-distance to 8-10, install "performant" or "starlight" as supplementary mods on Forge. With Mado Hosting, your server runs on NVMe SSDs with dedicated CPU cores for minimal latency.
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Rent Modded Server
Install Bob's Hotbar Optimizer with just one click on your server.