Not an expectation from Microsoft. It comes installed with windows, its system integrated and people expect to be something of high strength.It does not help the user to browse but helps the user to sleep by opening a single tab too slow. Neither it is user friendly, most of its settings are opened from control panel, instead of internet explorer.
This software has mostly been improved in Windows10 but still lags in performance.
When complaining we are told that we have slow internet connection and blame our ISP.