Apex Legends Nintendo Switch Quality

@agentacer3 That seems a bit broken, even for a Switch. Sure the quality is not good when playing on a Switch because the docked mode runs in 720p and in handheld, it's down to 512p and a lock on 30fps.
So when playing on a Switch you should always understand that the quality will always be blurry and bad.

However, with this said, have you tried to reboot your Nintendo Switch fully?
Hold down the power button for 3 seconds > Select "Power Options > Press "Restart".

Repair the game
Go to "Home Screen" > Go to "System Settings" > Pick "Data Management" > Go to the right and select "Software" > Find select "Apex Legends" > Go to the bottom and press "Check for Corrupt Data".

You could also try to clear the cache by doing the following:
Go to "System Settings" > Find and press "System" > Go to the right and pick "Formatting Options" > In here find and press "Clear Cache".

Is the game running from internal storage or are you using a microSD for the game?