Batman: Arkham Knight has been a bit of a disaster for PC users, and it looks like Rocksteady and Warner Bros. won't be able to remedy all the issues in the immediate future.
In a post on the WB Games' official forums, community admin Yorick explained: "Rocksteady is leading our team of developers and partners as we work on the PC performance issues that players have been encountering. The work is significant and while we are making good progress on improving performance, it will take some time to ensure that we get the right fixes in place."