Next, you’re gonna wanna move to the Performance tab.
Tip: If you cant see the performance tab you may be in the streamlined view.
nudge the More details arrow in the bottom-left corner to initiate the full Task Manager view.
Right-press the CPU usage graph then select Change graph to and Logical processors.
The logical processor graphs will show the individual usage of each core of your CPU.
The app has to be designed to support multiple processor cores.