Email freezes up

Since switching to Outlook, email opens and I can read and send mail for awhil,e,  4 or 5 emails sometimes  and then it freezes up. This never happens while in an open email or writing one. It occurs when I go to open the next email.  This happens every time I I use it.  Calendar, People etc. work but not email.  If I leave the email window open and switch to a different browser it works fine for awhile and then it freezes up also. Then I have to close out Outlook on both browsers and go for awhile until both browsers freeze up. I made sure cache was empty on both browsers before opening email but same problem occurred.
I WISH I COULD GET THE OLD HOTMAIL BACK.