What is this effect and how to disable it?

I’ve based my project on ShooterGame, so it’s probably a setting in there. But I’m getting the effect on the image and I have no clue how to disable it or even what it’s called. It’s like the previous frames are ghosting onto the next.

The image upload kept failed on this so I’ve linked to the image https://pbs.twimg.com/media/Cp1cRIJWIAEk8n0.jpg:large

Just disabled Temporal AA in the settings, and it seems to have fixed it. Sadly FXAA doesn’t look as good :frowning: