After I updated from Ubuntu 12.10 to 13.04 my operating system is very slow.
Until I see the login screen it takes very long and after logging in I wait for about a minute...
I have dual boot with Windows 8 (for visual studio only)
My laptop's configuration is:
Lenovo B570 CPU i3-2330 2.20Ghz Ram 6Gb HDD 500Gb VGA Intel HD 3000 (driver installed) Swap 4Gb Ubuntu 64bit