[FIX] ¿Stuttering and FPS Drops? I did this and the game runs smooth and well now.

Download Process Lasso: https://bitsum.com/

Right click the Dishonored2.exe process in Process Lasso and set a new watchdog rule. Customize the rule so that when the watchdog detects that Dishonored 2 is using more than 10 or 15 percent of the CPU for more than five seconds at a time, the watchdog will automatically set Dishonored 2's priority to High if it isn't already. I've had the game idling for 45 minutes now and it's still set to high - I'm going to play for a little while now and see if it continues to work. And like I said, this tweak offers up a pretty huge performance boost as far as I can tell, or good enough at least that users running mid end or slightly better hardware can enjoy the game. (I'm also using the 1 frame rendered tweak as well.) I'm playing at 1080p on a 60hz monitor and aside from the aliasing I'm relatively satisfied with the performance I'm pulling now.

It fixed everything for me! Hopefully it will help you guys too!