We want to test our application performance , so how can we get,
In device Behavior its contains device waiting,preparing,installing,Running,Sending results,Processing results, what exactly which includes only application or not.
CPU and Memory performance are collected after application is installed on device and it stops after test execution is finished - coresponding to the test steps it would be "running". You can check it after test run is finished in results view for particular device - "Performance" section" or download "performance.json" from the "Output Files".
If the "Performance Widget" is visible, it indicates the "performance.json" is available. This seems to be the case also here.
You can download it from "Output files" -tab of "Control Panel" or view it in the "Log" -widget. In this case it's showing appium.log by default.