Forget about that. It won't become faster than it becomes after a factory restore. That's back to 2005 or so (it was "top of the line" in 2004).
Working on an old laptop for my daughter as a starter and have already installed the maximum 2gb of ram. The machine is still quite slow and sluggish and was thinking about upgrading the cpu which is a Pentium 2 3.2ghz. Anyone have an idea if this is possible on this machine and if so which cpu I need to get please?