React Native App Navigations working very very slowly - react-native

Question

I have created a React Native App. Currently, I have just created views of the app, no redux as of now. Everything is hardcoded. I have mainly used Cards, Grid, List Views.
I am using native-base for designing purpose in my whole app. I contains SideMenu as well which I have created using Drawer of Native Base.
I am using react-native-router-flux for navigation.
I am using react native 0.52.2.
My App is working really very slowly (taking around 2-3 seconds to navigate) when I am keeping Cards, Grids, ListView on the Pages. If I remove these & just do navigation between pages using Buttons or Side Menu, the App is working fine. I have tested App in Android & iOS real devices & with release build in both the platforms.
Below is my package.json:
{
"name": "Test",
"version": "0.0.1",
"private": true,
"scripts": {
"start": "node node_modules/react-native/local-cli/cli.js start",
"test": "jest"
},
"dependencies": {
"axios": "^0.17.1",
"lodash": "^4.17.4",
"native-base": "^2.3.5",
"react": "16.2.0",
"react-native": "0.52.2",
"react-native-action-button": "^2.8.4",
"react-native-datepicker": "^1.6.0",
"react-native-easy-grid": "^0.1.17",
"react-native-modal": "^5.0.0",
"react-native-router-flux": "^4.0.0-beta.28",
"react-native-splash-screen": "^3.0.6",
"react-native-table-component": "^1.1.3",
"react-native-vector-icons": "^4.5.0",
"react-redux": "^5.0.6",
"redux": "^3.7.2",
"redux-thunk": "^2.2.0"
},
"devDependencies": {
"babel-jest": "22.1.0",
"babel-preset-react-native": "4.0.0",
"jest": "22.1.4",
"react-test-renderer": "16.2.0"
},
"jest": {
"preset": "react-native"
},
"rnpm": {
"assets": [
"./assets/fonts/"
]
}
}