One of the great things that accompany an appropriate use of time pressure comes from an unexpected angle.
Use of time pressure can increase the diversity of experience and execution.
Take a hypothetical example of doing something at a leisurely speed. You may choose to do a particular job very slowly, looking aside, sighing occasionally, stretching your arms, standing up for coffee, etc, and take one hour. If you are able to do the same amount of task in a very concentrated manner, and finish the task within, say, forty minutes, then you can do "something completely different" (yes, you are entitled to remember the immortal John Cleese catch phrase from Monty Python here) in the remaining twenty.
In the increasingly complex modern world, it is crucial to have a diversity in one's experience, in order to develop an robust set of abilities, and perhaps more importantly, to enjoy life fully. You can employ time pressure to realize the potentials within you by increasing diversity of action and experience.