Bad quality

The quality on the stories of WhatsApp are kinda bad, you want to upload a picture in good quality and it appears of the stories like a pixels, and its not the phone its the WhatsApp because I have an iPhone 7+ and the photos that it takes are good just like all iPhones and its The app fault.
Need to fix this
The quality on my phone is not the same as it appears on the stories that you upload on the app
Fix ASAP

Tito12131 about WhatsApp Messenger, v2.17.41