Today is the release of Batman: Arkham Knight, the new installment in the superhero series. Unfortunately, PC Gamer reports that the PC port "appears to be a disaster," noting that this may explain why they did not receive review code for the Windows version prior to release. The complaints center around performance, citing stuttering, framerate issues (even on high end cards), and a 30 FPS limit, noting that this can be worked around by editing the setting that reads "Max_FPS=30" in the BmSystemSettings.ini file. There's a big thread on NeoGAF discussing the issues and possible solutions.