Effect of fuzzy images/text on the user

My logic in my head is saying if a page contains fuzzy/pixelated images or text then this will put an element of distrust in the users head.

This can occur from designers or developers using an image too small for the location and using CSS to increase it's size or by the use of a font that isn't designed to be made bold etc.

Are there any studies/papers about that explain the effect of fuzzy images/text on a user?

If anyone has come across this in their working life too, would be great to get a bit of info around it.