make sure you use the settings below to have the best expience
shaders: go to shaders menu (main menu > options > video settings > shaders) then choose Spooklementary or VHS Overlay depending on what you prefer
resoure packs:
go to (main menu > options > Resource Packs)
make sure all the following resource packs are enabled
FreshAnimations
COVEN
Dot Crosshair
video settings: render distance: 4 chunks
mod settings (main menu > mods > CameraOverhaul >Config > walking )
set strafing roll factor to 15 if it makes you motion sick you can turn it down or off just it will be less imerssive