Move the downloaded .zip file directly into your shaderpacks folder inside your directory.

The "Lite" preset of Sildur's Vibrant Shaders is specifically engineered to run on a wide range of hardware, including older systems and Intel GPUs. Unlike the Enhanced Default version—which subtly improves vanilla graphics with basic shadows—the Vibrant series completely revamps Minecraft's lighting.

Knowing that, I can confirm if any specific setting optimizations are needed.

Version 1.54 brought improved raytracing and reduced reflection errors, fixing caustic and water wave issues. Transparent rendering was fixed for newer Iris versions, addressing problems with water, ice, and glass transparency. Distance blur issues on AMD or Linux systems have been resolved, and nametag rendering is now fixed. A hotfix (v1.541) addressed Distant Horizons fog blending issues.

: For smooth gameplay (60+ FPS), keep your render distance around 6 to 8 chunks on low-end hardware. How to Install (Updated Method)

The updated version features a rewritten sunbeam algorithm. Sunlight cuts through the trees during sunrise and sunset with absolute clarity, creating a warm, inviting atmosphere without triggering sudden lag spikes. 2. Enhanced Performance Profiles

The "Lite" in the name is the most important word for this shader pack. Its primary goal is to balance visual impact with a low performance cost, making it one of the best choices for players with older laptops, integrated graphics (such as Intel HD), or modest gaming PCs. While some players on high-end systems have reported that enabling any shader, including this one, can lead to a significant FPS drop to the 20–40 range due to underlying driver issues, this is not the typical behavior.

If the Lite version still causes lag, the developer recently reworked Sildur’s Basic Shaders Enhanced Default