Phasmophobia

Once hit level 50, you unlock custom

To level up quicker you can earn max 5-6k per game if lucky usually around 2-3k normally

The settings are

Player
Starting sanity (0)
Sanity pill restoration (0)
Sanity drain speed (200)
Sprinting (off)
Flashlight (off
Lose item and consumables (on)

Ghost
Ghost speed (100)
Roaming frequency (High)
Changing favourite room (high)
Activity level (low)
Event frequency(low)
Friendly ghost (off)
Grace period (0)
Hunt duration (high)
Kill extended hunts (off)
Evidence given (0)

Contract
Set up Time (0)
Weather (fog)
Doors starting open (high)
Number of hiding places(none)
Sanity monitor (off)
Activity monitor (off)
Fuse box at start (broken)
Fuse box visible on map(on)

You should get rewards
x13.07 rewards

This is pure luck based , as the ghosts are not guaranteed. If you can tell the ghosts easily by sound or movement then your in luck. If not it’s a guess game.

But you can level quite fast doing this method.
Hope this helps if you don’t want to grind majorly long!