Valve also explains its somewhat unique methodology for measuring frame rate and CPU usage
TL;DR:Steam Clientbeta participants can now view detailed performance metrics through the in-game overlay. While it doesn't offer as much data as advanced tools like Afterburner, Valve's new frame rate counter can display both real and AI-generated frames when DLSS or FSR frame generation is enabled.
A hot potato: We're used to seeing games on the PlayStation 5 and Xbox Series X offer performance modes that up the framerates, but not Gotham Knights. The hotly anticipated Rocksteady title will have one of the restrictions we often saw on the previous-generation consoles: a 30 frames-per-second limit. According to a dev, the fault lies with the "potato" Xbox Series S.