If you are getting notifications from AdminPerformance, then your Mac is infected with adware. AdminPerformance is adware for Mac.
AdminPerformance changes setting in your Mac. First, AdminPerformance installs a browser extension in your browser. Then, after AdminPerformance hijacks your browser, it modifies settings in the browser. For example, it changes the default home page, modifies search results, and displays unwanted pop-ups in your browser.