CPHSBC literally has a bad Lighting

[e-splat]

What happened?

Basically Iris Shaders loads a bad lighting when using CPHSBC shader, i would like to use it because for me vanilla minecraft color saturation sucks

Iris https://preview.redd.it/hz1lzwvhxrn81.png?width=959&format=png&auto=webp&s=0a11de9c211e69e544df1bb9c1b1a5bcc1e1e5f0

Optifine https://preview.redd.it/8cpffv2lxrn81.png?width=962&format=png&auto=webp&s=c9aadc3ce3098d891e4d16b72902da31f65f071f

Screenshots

No response

Log output

No response

Minecraft Version

1.20.4

Iris Version

iris-1.7.1+mc1.20.4.jar

Operating System

Windows 11

What is your GPU?

Nvidia GeForce GTX 1650 Super

Additional context

No response