For Lawale Adewoyin even if it's a year ago.
The tablet needs to have free memory. You can use an app called "ES task manager" wich come with a widget showing how many pourcent the memory is occupied. Your TF300 will be very slow when memory is going over 80%
this widget can also kill unused app to free memory by simply touch it.
It will be helpful to "deactivate" somme unwanted app in the application manager, like those bloatware named facebook, twitter, yahoo weather, yahoo news, google talk etc...
my tf300t is running well, his memory never go below 50% after return back to the desktop and killing app.
this is also usefull for any android device.