Redux dispatch is a little slow

Question

//Reducer file
const options = {
    name: 'searchResult',
    initialState: [],
    reducers: {
        setSearchResult(state, action) {
            return action.payload
        }
    }
}
export const searchResultSlice = createSlice(options)

//Component file
const handleClick = (dispatch) => {
        //Problem lies here
        dispatch({
            type: 'searchResult/setSearchResult',
            payload: []
        })
    }

I have a searchbar and using an API to get data relating to search term. Now, the problem is suppose, a search is done and the response of API gets stored in redux store searchResult. After that, I want the array to be empty on click of a close button. So, I empty the array by dispatching the action with an empty array but it takes a second or two to empty the array. Why is it so?