2.11 - Blurry in viewport

I opened a file in version 2.11 and the viewport looks blurry.
How can I set it to high resolution?
This is a file from version 2.10, and it didn’t look like this before.

Hi @projeto

It’s not DOF or compatibility mode.
Honestly, I don’t know what it is.
I’m using an RTX 3080 Ti.
My viewport is not sharp, appears blurry

Just look at this viewport quality!

Hi @projeto

Please send the file and log file to support@d5techs.com and have it titled “2.11 Clov-Forum 2.11-Blurry in Viewport