How to response three times step by step

There are three step action

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how to response three times step by step,not wait it all have result and respnse.it takes me 3 seconds to resonse,I want to make it 1 seconds. so each step 1 seconds,I think it will ok. How to do?

each custom action takes about 2 second…why?

the utter_XXX is fast.but why custom action so slow