NumberPicker loads very slowly when it calls from UITableView Delegate method

[arishanapalli]

NumberPicker loads very slowly when the action is call from didselectedRotAt

    func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {
        tableView.deselectRow(at: indexPath, animated: true)
        switch (indexPath.row) {

        case 2:
            do {
                loadNumberPicker()
                break
            }

func loadNumberPicker(){

  let numberPicker = NumberPicker(delegate: self, maxNumber: 100)
        numberPicker.bgGradients = secondGradientColors
        numberPicker.tintColor = .white
        numberPicker.heading = “Select Your Value”
        numberPicker.defaultSelectedNumber = 0
        self.tabBarController?.present(numberPicker, animated: true, completion: nil)
}

Same method calling from button action its appears very quickly, not when calling it from UITableView didSelectRowAt.