Grainy view port

When I edit or play my games, I notice an overall grainy effect on my meshes. It seems as though the resolution is extremely low. I edit and play on a 4k screen so maybe it is more noticeable to me but, even when launching the game in a separate instance the grass, my character and some of the landscape appears pixelized. Any help would be fantastic as this is supposed to be a technology showcase and I need it to look as nice as possible!

Edit: Turning on FXAA helps a lot but, the edges of all the meshes still seem blurry

I finally solved my own problem!
Here are some steps if your game seems super blurry or grainy
-Make sure your engine scalability settings are on epic and 100% resolution
-Make sure your postprocess volume’s under misc settings AA is set to FXAA, temporal AA causes extra bluriness
-Last is very specific to 4k display users, using windows display zoom causes massive resolution lost!

These are some tips I have found that helped me out!