quality parameter doesen';t work

[Ihornechypor]

Hello, maybe someone has an issue with image optimization. I've tried different parameters but still have the same result. And after conversion tinypng can optimize images with -70% result.

`const {
src,
dest,
parallel,
series,
} = require('gulp');

const responsive = require("gulp-responsive");
const clean = require('gulp-clean');

const delDist = () => src('dist/**/*', {read: false}).pipe(clean())

const respImages = () => {
return src('src//*.{jpg,png}')
.pipe(
responsive({
'/.jpg': [{
width: "5%",
blur: 1.2,
quality: 50,
rename: {
suffix: '-ph'
},
format: ['webp']
}, {
width: "100%",
quality: 50,
rename: {
suffix: '@2x'
},
format: ['webp', 'jpg']
}, {
width: "50%",
quality: 50,
quality: 75,
format: ['webp', 'jpg']
}],
'**/.png': [{
width: "5%",
quality: 50,
blur: 1.2,
rename: {
suffix: '-ph'
},
format: ['webp']
}, {
width: "100%",
quality: 50,
rename: {
suffix: '@2x'
},
format: ['webp', 'png']
}, {
width: "50%",
quality: 50,
format: ['webp', 'png']
}]
}, {
errorOnEnlargement: false,
skipOnEnlargement: true,
errorOnUnusedConfig: false,
errorOnUnusedImage: false
})
)
.pipe(dest('dist'));
};

exports.default = series(delDist, parallel(respImages));
`