OptiFine HD (1.21.6, 1.21.5) is a mod that helps you to adjust Minecraft effectively. It makes Minecraft run more smoothly and use less resources. Besides, it enables you to run resource (texture) pack HD without installing more other mods. Usually it can double or triple your FPS. All in all the mod is a performance related tool that can provide a large FPS boost. This is an optimization tool for Minecraft. It allows the use of high-resolution texture packs, optimizes game performance, enhances stability, and reduces lag. Although it was originally designed to optimize game performance and enable the installation of higher resolution textures, it has become an essential tool for installing shaders. In addition to a series of pre-established optimizations, this tool allows us to disable certain graphical options that cannot be turned off without it. This helps reduce graphic elements that consume more resources. One interesting feature of this tool is that its benefits are noticeable whether you have a low-end, mid-range, or high-end computer.
Source: OptiFine HD (1.21.6, 1.21.5)
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