Default [Q] Blurry Screen Display on non-Stock ROMs

When I flashed the ROMs from the following:

- http://forum.xda-developers.com/show....php?t=2637079 (CM11)
- http://forum.xda-developers.com/show....php?t=2665093 (OmniRom)

I noticed that the screen display is much more blurry than on my original stock ROM or the KitKat stock ROM I later flashed as well (http://forum.xda-developers.com/show....php?t=2767314). It was very obvious when I switched from Omni to stock.

I was wondering if this is normal/intended or if it's just me since no one else seem to be saying anything about it, and is there a way to fix it other than abandoning those ROMs?