Does it always look like that, even if you zoom and pan the camera? There's something kinda nice about it, sorta early 2000's graphics
Dunno if it's the same for the OP but, for me, it's just kind of random and often goes away after a few seconds/minutes.
I'll look at an external view of a ship, either in play or in the equipping screen, and it'll look low-res and then I'll notice that it's sorted itself out even though I won't
see it happen.
I'm not entirely sure but it
seems to happen after periods involving heavy use of graphics, such as lots of ships or during/after a planetary landing.
I'm guessing that it happens when you've got a slightly wheezy gfx card, it's memory gets filled up with stuff and then it displays the low-res image of the ship until the card has sorted itself out.