Batman Arkham Knight is a technical mess on the PC. As early reports indicate, its performance is dire and it is nearly unplayable at times. Even on a high-end rig, the game can’t maintain stable 60 fps despite running on the lowest settings. Fortunately, there are some quick fixes that can help with some of the performance issues.
First of all, you have to disable the frame rate cap from the game. You can read all about it from here.
Once you have disabled the frame rate cap, you have to tweak the in-game motion blur as well, since it is considered a hit on performance. To do so, you need to open the same ini file that you edited for removing the frame rate cap and change the following values.
This will help with the performance until an official patch is out for Batman Arkham Knight on PC.
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