Changed the collection image to full site witdh and it gets blurry

I have changed the collection image size to full width with this code :

@media screen and (max-width: 749px) {
.collection-hero__image-container {
height: 20rem;
}
}

@media screen and (min-width: 750px) {
.collection-hero–with-image .collection-hero__text-wrapper {
padding: 4rem 2rem 4rem 0;
flex-basis: 50%;
}

.collection-hero__image-container {
align-self: stretch;
flex: 1 0 50%;
margin-left: 3rem;
min-height: 20rem;
}
.collection-hero__inner .collection-hero__text-wrapper{
position: absolute;
top: 50%;
left: 50%;
transform: translate(-50%, -50%);
z-index: 2;
padding: 0;
margin: 0;
flex-basis: 100%;
}
.collection-hero__image-container {
flex: 1 0 100%!important;
margin: 0!important;
}

my image size was 4446x4446 pixels but it still gets blurry .

my url is :

https://c7593d-2.myshopify.com/collections/vibe

Hi,

Can you share your storefront password?

Hi and thanks in advance for the reply ,

for this url

https://admin.shopify.com/store/c7593d-2/themes/152917279069/editor?previewPath=%2Fcollections%2Fvibe

pass is southdrops2023

Hi,

Do you mean the banner is blurry?

yes

We need to remove the optimized code from the banner to show the original image.

but how can i make the banner of the collection full width without getting blurred ? what are the dimensions ? or the right code to do it?

\