Basic throttle response with brushless system

[tittelba]

Hi,
I just got a used Lehner 5400 and warrior 7080 for my Losi xxx-4G+. I've set-up the the ESC per the instructions but I don't get an immediate throttle response. What happens is that I have to give a small amount of throttle (forward or reverse) before being able to pull full throttle and have the buggy take-off. Is this common? and can I turn this feature off?

It's annoying because if I don't give just the right amount of mild throttle input and then try to goose it, it doesn’t move.

Tom