Unofficial uploads are rarely updated, meaning they likely won't work with the latest versions of Minecraft or Iris/Optifine. Lack of Support:

Select Nostalgiavx from the in-game list. Go to "Shader Options" to tweak the lighting and performance settings to match your hardware. Troubleshooting Common Issues Nostalgiavx Free Download

What is NostalgiaVX? This is quite an interesting project with its very own niche. As some of you might know, basically all ready- RRe36's Projects Supporter Updates 2023-04 (Focusing on NostalgiaVX) Unofficial uploads are rarely updated, meaning they likely