App slow start up

Hi all,

I know there are already a couple of topics about slow start-up times, but I in my case my app started quickly on iOS (3-4 seconds) before, but now starts up really slowly (~13 seconds). I cannot find out what changes I made causes this. I tried out the Ionic blank starter project and it starts up quickly (3 seconds) on my iPhone 6S.

This is the log in XCode:

2018-03-03 15:11:01.383052+0100 Apache Cordova native platform version 4.5.3 is starting.
2018-03-03 15:11:01.384976+0100 Multi-tasking -> Device: YES, App: YES
2018-03-03 15:11:01.417479+0100 CDVWKWebViewEngine: trying to inject XHR polyfill
2018-03-03 15:11:01.543967+0100 [MC] Lazy loading NSBundle MobileCoreServices.framework
2018-03-03 15:11:01.545974+0100 [MC] Loaded MobileCoreServices.framework
2018-03-03 15:11:01.557626+0100 CDVWKWebViewEngine will reload WKWebView if required on resume
2018-03-03 15:11:01.557762+0100 Using Ionic WKWebView
2018-03-03 15:11:01.559614+0100 [CDVTimer][console] 0.295997ms
2018-03-03 15:11:01.560097+0100 [CDVTimer][handleopenurl] 0.306010ms
2018-03-03 15:11:01.566991+0100 Unlimited access to network resources
2018-03-03 15:11:01.567260+0100 [CDVTimer][intentandnavigationfilter] 7.053971ms
2018-03-03 15:11:01.567595+0100 [CDVTimer][gesturehandler] 0.253916ms
2018-03-03 15:11:01.618503+0100 [CDVTimer][diagnostic] 50.814986ms
2018-03-03 15:11:01.618839+0100 CDVIonicKeyboard: resize mode 3
2018-03-03 15:11:01.621676+0100 [CDVTimer][keyboard] 2.905011ms
2018-03-03 15:11:01.628477+0100 [CDVTimer][file] 6.630063ms
2018-03-03 15:11:01.661072+0100 [CDVTimer][splashscreen] 32.433987ms
2018-03-03 15:11:01.683072+0100 [CDVTimer][statusbar] 21.767020ms
2018-03-03 15:11:01.683234+0100 [CDVTimer][TotalPluginStartup] 124.732018ms
2018-03-03 15:11:08.643698+0100 Ionic Native: deviceready event fired after 3955 ms
2018-03-03 15:11:14.277390+0100 Platform ready

Output of ionic info:

cli packages:

    @ionic/cli-utils  : 1.19.1
    ionic (Ionic CLI) : 3.19.1

global packages:

    cordova (Cordova CLI) : 7.1.0

local packages:

    @ionic/app-scripts : 3.1.8
    Cordova Platforms  : ios 4.5.4
    Ionic Framework    : ionic-angular 3.9.2

System:

    ios-deploy : 1.9.2
    ios-sim    : 6.1.2
    Node       : v9.5.0
    npm        : 2.15.12
    OS         : macOS High Sierra
    Xcode      : Xcode 9.2 Build version 9C40b

Environment Variables:

    ANDROID_HOME : not set

Misc:

    backend : pro

The plugins that are installed:

cordova-custom-config 5.0.2 "cordova-custom-config"
cordova-plugin-audioinput 0.3.0 "Audio Input"
cordova-plugin-camera 4.0.2 "Camera"
cordova-plugin-compat 1.2.0 "Compat"
cordova-plugin-console 1.1.0 "Console"
cordova-plugin-crosswalk-webview 2.4.0 "Crosswalk WebView Engine"
cordova-plugin-device 1.1.7 "Device"
cordova-plugin-file 6.0.1 "File"
cordova-plugin-file-transfer 1.7.1 "File Transfer"
cordova-plugin-ionic-keyboard 2.0.5 "cordova-plugin-ionic-keyboard"
cordova-plugin-ionic-webview 1.1.16 "cordova-plugin-ionic-webview"
cordova-plugin-media 5.0.2 "Media"
cordova-plugin-network-information 1.3.4 "Network Information"
cordova-plugin-splashscreen 5.0.2 "Splashscreen"
cordova-plugin-statusbar 2.4.1 "StatusBar"
cordova-plugin-whitelist 1.3.3 "Whitelist"
cordova-sqlite-storage 2.2.1 "Cordova sqlite storage plugin"
cordova.plugins.diagnostic 3.9.2 "Diagnostic"