Step 1. Go into the graphics settings of the game. To do this look for the cogwheel icon in the top right. Click it, and it should default to video settings.
Step 2. Turn Post Process on low, and also turn Anti-Aliasing on low.
Step 3. Exit the setting and play.

BAM game looks nice and crisp like team fortress 2.

If you think the game the looks better with those settings on high you're a simpleton and must enjoy game that look like you put your contact lens in wrong.

*Edit 5/31/19
Just wanna say this isn't well thought out. I didn't put any effort into this it took me all of 5 minutes. There are other games that have similar weird problems with AA that can usually be fixed by changing some simple settings.

This is just a quick guide, someone else made a guide (after me) that tells you how to go into the game .ini files and turn some stuff off there to get a slightly even cleaner effect, but this guide works too if you don't wanna mess around with your game files. I don't actually think any of you are simpletons. Enjoy the game, see yah out there!