problem with dimension!, very big size compared to the original

Hello friends, I'm having problems at the moment of capturing the change made with a selected filter, the dimensions of the new image are much bigger than the original..

```
import { Surface } from 'gl-react-native';
import GLImage from 'gl-react-image'
import....
.....

//mobwidth = 411.428
//responHeigh of this file = 731.428

this.SurfaceRef = ref}
style={{ width: mobwidth, height: responHeigh }}
>

```
onPress={() => this.saveFilters()
```
saveFilters = async () => {
let fiwidth = this.props.route.params.datimag[0].width
let fiheigh = this.props.route.params.datimag[0].height

const result = await this.SurfaceRef.glView.capture();
console.log(fiwidth); // Image orig: 1080
console.log(fiheigh); // Image orig: 1920
console.log(result);

result is:
{"height": 2560,
"localUri": "file:///data/user/0/com.myapp/cache/GLView/640ad8e1-7470-465c-9e95-21b546ec512e.jpeg",
"uri": "file:///data/user/0/com.myapp/cache/GLView/640ad8e1-7470-465c-9e95-21b546ec512e.jpeg",
"width": 1440}

}
```
I don't understand why the resulting dimensions are so much larger than the original dimensions,
How can I keep the dimension of the original image?, just in case I leave the code of Valencia.js
[https://github.com/beqaweb/gl-react-native-filters/blob/master/filters/Valencia.js](url)