Ladder bar - shock settings

On a ladder bar car with double adjustable shocks, how would you adjust the shocks so the car responds quicker? I've been running some index races on a Pro Tree and my lights are not as good as I want them to be. I have a pretty good setup for normal bracket racing so I'd like to be able to just make a shock setting change as it's quick and easy. My front shocks are only single adjustable, but I go from 2 clicks to 10 clicks for the Pro Tree. I could try tightening them up more, but was curious how/if I could change the rear shocks settings to make the car respond quicker.
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