The truth is, designing faster is not just better for you, it is better for your business. Every project comes with deadlines. You only have so much time to get a great design out the door and into production, only so many hours to find and fix flaws, only so much time to find not just a good solution but a great one to design challenges.
You only have so much time.
The faster your machine processes, the quicker it comes up with answers, the better your design is. A slow system prevents you from exploring options and running tests. It slows down communications between members of a design team, members of a production company, between your company and customers.
Speed matters to you, to your customers, to their customers