Webhook slow to respond

Hi Guys looking for the best way to handle a situation in my office when i implemented the API i wait for the webhook before giving value to a customer in a wallet funding flow my boss is complaining that the flow is not smooth enough because sometimes the web-hook is like a min late, so he suggested once the paystack fronted modal is successful i should give value at backend. Pls I want to know how others do it. Kindly share how you implement this
thanks