No. Programs should get their work done in a timely fashion, but often moderately slow is fast enough.
For example, your Web browser mostly does nothing as it waits for your commands. It is an interpreter for the commands you enter using the mouse and keyboard. It would be only a slight improvement to make it run much faster.
You may wish to review the following. Click on a subject that interests you to go to where it was discussed.
The next chapter will discuss how the language Java fits into the concepts this chapter has discussed.
It is well known that stone can think, because the whole of electronics is based on that fact...
— Terry Pratchett, Equal Rites