I have installed Ubuntu 12.10 Desktop on Vmware Player with Windows 7 as an host. I have given it 30GB or hard disk space and 3 GB of ram yet Ubuntu is lagging. When I right click or something, it takes around 3-4 seconds to show the menu.. Can't it work faster? Any ways? I had tried installing ubuntu with dual boot with windows using a bootable usb(made using the link given on ubuntu's official site) but some error occured and it wasn't able to install. Even windows was not booting and i had to repair it that is why i am running it on VmWare. Please help me make it work faster.. I hate lag :( Thanks. -Ryder
There is a known issue with running Ubuntu 12.10 inside a virtual machine such as Virtualbox or VmWare.
The Unity desktop is reliant on the Graphics processor which is not supported in many virtual machines -- see here.
This was not an issue in 12.04 as it had the Unity 2D desktop as an option for slower machines.
If you have a powerful enough machine you can try giving Ubuntu more than one core.
Alternatively you can use another desktop: To use the "Gnome Classic" desktop which is similar to the desktop as used in 10.04 open a terminal with CTRL+ALT+T and enter
log out then back in selecting Gnome Classic as your desktop.