Sims freezes only in main world, not in the world of university...
Does that mean you have two graphic cards in there ? A radeon and the hd graphics ? If so, make sure, the game is running the radeon one:
@DarkAmaranth1966 wrote:Right click anywhere on the desktop. That opens a menu with various options that includes the option to "Configure switchable graphics". After selecting this, another window opens for the Radeon that will allow the user to choose that card for whatever programs they want. There is also a check box in this window that says "show a pop up warning for unassigned applications". That should be checked. The next time the user runs the game, a pop up should open and let them designate the better graphics card for the game. After that, it should stay on the Radeon card.
Also try updating your graphic drivers. The one from the hd graphics are from 2011.
