I recently bought Fallout 4, and as we all know it looks like crap compared to what the specs tells us. I wanted to atleast make it look decent by install a SweetFX to it (SweetFX rarely hits the performance too hard as it's just an overlay), but then Action! stopped working with the game.
I don't remember how, but I know that I have been able to record Skyrim with full blown ENBs installed (ENB is basically a super SweetFX), so there has to be some way I can do it.