Apple MacBook Pro is terribly slow
Recently I bought a new Apple MacBook Pro With Retina display with 4 GB RAM.
Everything looks fine, but when I open any web browser its taking a long time and sometimes not even opening. I am having a very high speed internet at my home. So it is not a problem with the internet. But, I can't open my emails, movies and games etc. Properly taking more time and sometimes not loading at all. After that I created one more user account and logged in with second user with this everything is working properly. I don't know what is the problem here.
Can someone can tell me the problem here? Thanks in advance for any help.