"Throttle response" refers to how quickly a vehicle's engine reacts and delivers power when the driver presses or releases the accelerator pedal. Full definition
And I'm pretty sure it won't have the instant throttle response of that engine either. (evo.co.uk)
This allows improved throttle response as well as reducing traction control intervention to allow for more driver involvement. (evo.co.uk)
Yes, you get significantly sharper throttle response at low speeds and better torque feel around town; and, of course, off the line performance feels significantly better. (cnet.com)