Are you looking to boost performance while using Sildur’s Shaders in Minecraft 1.21.4? Whether you’re playing on a low-end PC or simply want the smoothest experience possible, this guide will show you the best settings to optimize Sildur’s Vibrant Shaders without losing quality.
Sildur’s Shaders is one of the most popular shader packs for Minecraft, adding beautiful lighting, reflections, waving leaves, and realistic shadows. But without the right settings, it can cause lag and FPS drops, especially on weaker computers.
This guide will help you get the best FPS possible while keeping your game looking amazing. Let’s get started!
Why Use Sildur’s Shaders in Minecraft 1.21.4?
Sildur’s Shaders is a versatile shader pack with multiple versions designed for different PC specifications. Whether you have a powerful gaming rig or a budget laptop, Sildur’s offers a setting that will work for you.
Here’s why Sildur’s Shaders is a great choice:
- Highly customizable – You can tweak performance settings easily.
- Multiple versions – Choose from Lite, Medium, High, and Extreme settings.
- Compatible with most PCs – Even low-end computers can run the Lite version.
- Great visuals – Enhances lighting, water, sky, and reflections.
Now, let’s go through the best settings to increase FPS while keeping Minecraft looking great.
Step 1: Download & Install Sildur’s Shaders
1. Download the Shader Pack
Before tweaking settings, you need to install Sildur’s Shaders. Here’s how:
- Download the Lite version (recommended for low-end PCs).
- Save the .zip file – Do NOT extract it.
2. Install OptiFine (Required for Shaders)
Sildur’s Shaders needs OptiFine to work correctly.
- Run the OptiFine installer and click Install.
- Open the Minecraft Launcher, select the OptiFine version, and click Play.
3. Move the Shader File to the Correct Folder
Now, place the Sildur’s Shaders file where Minecraft can detect it:
- Open File Explorer and type %appdata% into the search bar.
- Open the .minecraft folder and find the shaderpacks folder.
- Move the downloaded Sildur’s Vibrant Shaders .zip file into this folder.
Now you’re ready to optimize your settings for more FPS!
Step 2: Best Sildur’s Shaders Settings for High FPS
Once you have Sildur’s Shaders installed, follow these settings for smooth gameplay on low-end PCs:
- Open Minecraft → Go to Options → Video Settings
- Click Shaders → Select Sildur’s Vibrant Shaders
Click Shader Options and adjust these settings:
- Render Quality – 0.5x (Increases FPS significantly)
- Shadow Quality – 0.5x (Lower shadows for better performance)
- Clouds – OFF (Boosts FPS)
- Waving Entities – OFF (Disables animated grass/leaves for FPS boost)
- Bloom – OFF (Removes unnecessary lighting effects)
- Motion Blur – OFF (Prevents FPS drops when moving)
- Reflections – OFF (Improves performance on low-end GPUs)
- Parallax Mapping – OFF (Reduces VRAM usage)
Bonus Tip: If your FPS is still low, switch to Sildur’s Vibrant Lite for even better performance.
Step 3: Additional Tweaks for More FPS
If you’re still experiencing lag, try these extra performance tips:
- Lower Render Distance – Set it to 6-8 chunks in Video Settings.
- Turn Off Smooth Lighting – This reduces GPU load.
- Use Fast Graphics – Found in Video Settings → Graphics.
- Allocate More RAM to Minecraft – Increase it to 2-4GB in the launcher.
These small changes can significantly improve FPS while keeping your game playable.
Final Thoughts – Enjoy Smooth Gameplay!
With these settings, you should now have stable FPS while using Sildur’s Shaders in Minecraft 1.21.4. No more lag, no more stuttering—just smooth, beautiful gameplay!
If you found this guide helpful, check out my other Minecraft tutorials or visit my YouTube channel for video walkthroughs!