Yes chill mode limits throttle percentage to 70% and also reduces throttle ramp up.
If you are using a bi-blade, with chill mode and lower battery voltage the power is bellow 10kw but 6 seems pretty low.
I want to add a feature that make the modes based off power and not throttle percentage. That way say chill mode could be set to 10kw and it will stay the same even with different props and voltage.