Foobar and WMP12 -u-
I think it your computer. Because alt tabbing osu doesn't lag my or a regular comp.Elit3noob wrote:
In my opinion Windows Media Player sucks!
I use Realplayer (but it uses a bit of internet), sometimes osu! (because alt+TAB hardly switches between windows because it just gets stuck on osu! ), and iTunes (because it's a BOASS )