Taking too much time to authenticate on real device.

[jimkhan]

I'm using "react-native-fingerprint-scanner": "^6.0.0" it works fine on emulator. But when I built apk it taking too much time(3 or 4 seconds) to authenticate on a real device. What can I do?

Here is my code:

const SplashBeforeFingerprint = ({ navigation }) => {

    useEffect(() => {
            FingerprintScanner
                .authenticate({ description: 'Scan your fingerprint on the device scanner to continue' })
                .then(() => {
                        /// nothing to do
                })
                .catch((error) => {
                    Alert.alert(
                        "Authentication failed",
                        "Your fingerprint doesn't matches! Try agin later!",
                        [
                            {
                                text: "Exit",
                                onPress: () => BackHandler.exitApp(),
                                style: "cancel"
                            },

                        ],
                        { cancelable: false });
                });

    }, []);

    return (
        <ImageBackground source={require("../img/Splash2.png")} style={styles.imageContainer} >
            <View style={styles.buttonContainer} >
                <AppButton style={styles.button} textStyle={styles.text} name={"Go to Home"} onPress={() => navigation.reset({
                    index: 2,
                    routes: [{ name: 'NewWallet' }],
                })} />

            </View>
        </ImageBackground>
    ) }