Bethesda Softworks and Arkane Studios are working on Dishonored 2 performance patch for PC.
Here’s what the team had to say about the upcoming performance patch for PC:
“We have been monitoring the PC forums and social channels and while we’re excited to hear that many of you are enjoying the game, we are disheartened that some of you are experiencing PC performance issues on some systems.
We are actively working to provide an update to address your concerns. The patch and its release notes will be available in the coming days.
With the feedback our support group as received, we are preparing a patch intended to provide improvements to allow for more consistent framerates on affected systems and provide an update to the mouse code for smoother input.”
But before the Dishonored 2 performance patch is deployed, you can follow these workarounds suggested by Bethesda here.