
JS Performance Pack
ModrinthA lightweight Fabric optimization modpack for Minecraft that boosts FPS, improves chunk loading, reduces lag, and stays close to the vanilla experience.
26.3 · MC 26.3 · Fabric
Files
26.3
releaseJS Performance Pack 26.3
26.3fabric2026-10-28 · 504 downloads
JS Performance Pack [Fabric 26.3].mrpack · 23 KB
26.2
releaseJS Performance Pack 26.2
26.2fabric2026-07-24 · 15.9K downloads
JS Performance Pack [Fabric 26.2].mrpack · 22 KB
26.1.2
releaseJS Performance Pack 26.1.2
26.1.2fabric2026-07-24 · 2K downloads
JS Performance Pack [Fabric 26.1.2].mrpack · 22 KB
26.1.1
releaseJS Performance Pack 26.1.1
26.1.1fabric2026-07-24 · 292 downloads
JS Performance Pack [Fabric 26.1.1].mrpack · 22 KB
26.1
releaseJS Performance Pack 26.1
26.1fabric2026-07-24 · 769 downloads
JS Performance Pack [Fabric 26.1].mrpack · 22 KB
1.21.11
releaseJS Performance Pack 1.21.11
1.21.11fabric2026-07-03 · 12.1K downloads
JS Performance Pack [Fabric 1.21.11].mrpack · 27 KB
1.21.10
releaseJS Performance Pack 1.21.10
1.21.10fabric2026-07-03 · 1.9K downloads
JS Performance Pack [Fabric 1.21.10].mrpack · 22 KB
Files are delivered unmodified from Modrinth's servers and verified against the SHA-512 hash published by the project. The project's license applies to every file; check it before redistributing.
Gallery
About
About Modpack
JS Performance Pack is a lightweight Fabric optimization modpack focused on improving Minecraft's performance while preserving the vanilla experience. It combines a carefully selected set of optimization mods to increase FPS, reduce stuttering, improve chunk loading, and lower memory usage without changing gameplay.
The pack is designed to work well on both low-end and high-end systems and is suitable for both singleplayer and multiplayer.
Credits
This modpack would not be possible without the work of the developers behind the included open-source mods. Full credit goes to their respective authors.

