Realistic Natural Colors and environment (Underwater, lava, explodion,
thunder, etc) and replaced original music to natural sounds. (Birds,
crickets, cicadas, etc)

Recommended use Optifine 1.15
https://optifine.net/downloads

Recommended Shader pack Continuum 2.0.4
https://continuum.graphics/continuum-download

my nvidia cards 2060 RTX
garantied 60 FPS this Continuum setting (see Continuum-2.0.3.zip.txt)

#Thu Nov 07 22:22:12 CET 2019
AMBIENT_SAMPLES=AMBIENT_MINIMUM
AO_CHEAP=true
BLOOM_SAMPLES=BLOOM_LOW
CAUSTICS=true
DOF_SAMPLES=DOF_MINIMUM
GAMMA_CORRECTION=1.25
GI_QUALITY=GI_LOW
GLOBAL_ILLUMINATION=true
LENS_FLARE_STRENGTH=2.0
RAYTRACE_QUALITY=RAYTRACE_LOW
RAYTRACE_REFINES=REFINES_MINIMUM
REFLECTED_CLOUDS_QUALITY=REFLECTED_CLOUDS_LOW
REFLECTED_CLOUDS_QUALITY_DIRECT=REFLECTED_CLOUDS_LOW
SHADOW_QUALITY=SHADOW_MINIMUM
shadowMapResolution=1024
sky_moonColorTemperature=5000
sky_sunColorTemperature=5000
sky_sunLuminanceBase=95000
SPECULAR_QUALITY=SPECULAR_LOW
TERRAIN_PARALLAX=false
TORCH_LUMINANCE=50
VL_QUALITY=VL_MINIMUM
VL_SELF_SHADOW=true
VOLUMETRIC_CLOUDS_DIRECT_QUALITY=VCL_HIGH
VOLUMETRIC_CLOUDS_SHADOWS_STEPS=VCS_HIGH
VOLUMETRIC_LIGHT=false
WATER_PARALLAX=false
WATER_PARALLAX_SAMPLES=WPARALLAX_HIGH