For Minecraft 1.19.1, an FPS boost pack is a community-curated collection of mods, such as Sodium, Lithium, and Iris, designed to replace legacy tools like OptiFine for improved rendering, physics, and performance. These packs significantly reduce lag and increase frame rates, with popular pre-made options including Fabulously Optimized and Boosted FPS available on platforms like CurseForge. Explore the Boosted FPS pack at CurseForge . Best Minecraft Mods For Maximum FPS Boost