Level 46
Your post really belongs in Q&A - ConfigureDefender utility for Windows 10, and your answers to questions can be found there. Please search the thread to learn more.

With that said, high setting advised for low maintenance reasons. Max will require more maintenance due to blocks, FPs, etc.depending on your installed apps/system setup. If you use Max make sure to change WSC > Visible unless you don't want anyone accessing settings.