Large file save freeze app for seconds

# Bug Report

## Problem

### What is expected to happen?
On large file save (> 5mb) app freeze for seconds.
Its pause render in my app, and animations start lag and jump.

### What does actually happen?
No freeze or lag in render on file save.

## Information

### Command or Code
```javascript
const save = (data, filename) => {
const onErrorHandler = e => console.error('file save error ', filename, e);

window.resolveLocalFileSystemURL(cordova.file.externalDataDirectory, dirEntry => {
dirEntry.getFile(filename, { create: true, exclusive: false }, fileEntry => {
fileEntry.createWriter(fileWriter => {
fileWriter.onwriteend = () =>
console.log('Successful file write ', filename);
fileWriter.onerror = onErrorHandler;
fileWriter.write(data);
}, onErrorHandler);
}, onErrorHandler);
}, onErrorHandler);
};
```

### Environment, Platform, Device

- Galaxy S8 / android 9
- Mi A2 Lite / android 9

### Version information

- cordova: 9.0.0
- cordova-android: 8.1.0
- cordova-plugin-file: 6.0.2

## Checklist

- [x] I searched for existing GitHub issues
- [x] I updated all Cordova tooling to most recent version
- [x] I included all the necessary information above

Start with the JavaScript save function in the issue and reproduce the reported freeze using a file larger than 5 MB on the listed Android devices and versions. Compare rendering and animation during fileWriter.write(data); done means saving completes without blocking rendering or causing visible animation lag.

Written by the indexing model from the issue text.