There's always some extra performance to be squeezed out of a computer, regardless of whether it's old or new. Because SUSE Linux offers a high degree of control over your hardware and software setup, it's ideal for this purpose.
SUSE Linux is unique among Linux distributions in that, out of the box, it's already highly optimized. However, there are still many opportunities to generally speed things up and, in particular, reduce delays. While you shouldn't expect miracles from the techniques outlined in this chapter, they do allow a certain degree of system tuning, which can bring dividends, particularly on older systems.