Windows OS performance
When Brave Browser is running on your Windows machine, try in the command line:
tasklist > %USERPROFILE%\Desktop\Running_Processes.txt
Developer Tools window
Windows OS keyboard: Control+Alt+I (F12 key may work, too, on some PC’s)
When you view the Brave Browser Developer Tools, look for the vertical 3 dots - near the right end of your window screenshot that you provided:
Click on the vertical 3 dots
You will get a pop-up window showing how the Console window may be displayed on your computer — Dockside or as a separate browser window.
You might have to fiddle with those buttons, but you will figure it out. Choose the separate browser window, so you can fully display the Developer Tool: Network . . . and also try the Console.
How to Use Web Browser Developer Tools
(March 24, 2020)
This Lifewire article has several good illustrations.
“https://www.lifewire.com/web-browser-developer-tools-3988965”