I switched from Unity to GNOME SHELL 3.
Now i find Gnome too as slow upto some extent.It takes very much time after startup to load.Also
1)when more apps are opened it is taking more time to respond.
2)The workspaces provided in Unity were far better as Unity isolates every workspace and by Alt+Tab you can get into other workspace's window.But in Gnome it can switch {Not something i want}
Also i have tried majority of options [which seemed valid to me] on internet. {Have not tried to change start up scripts of Gnome}.
So what is the prefered to use Gnome with some modifications.If yes --- please specify.
If no then which Desktop Enviroment is fast and lite to use :- Cinnamon,Xfce,LXDE,KDE,etc?