Dawn Theme seems to ruin image in home page preview?

[JayTuut]

I’m not sure why this is happening, I made it 2048 (so it wouldn’t exceed 20MP’s) so it is very high quality.

Yet on the home page preview it looks like this:

Really blurry…

But the item page it looks fine and high quality, as well as a lot bigger:

Is this a bug with the Dawn Theme or am I doing something wrong?

[system]

Hello,

On home page showing featured collections you can check these options in theme customization. If still not showing any result then needs to change a code in liquid file. First try by changing these options in theme customization( screenshot attached).

Thank you.