I love fast software. That is, software speedy both in function and interface. Software with minimal to no lag between wanting to activate or manipulate something and the thing happening. Lightness.
Software that’s speedy usually means it’s focused. Like a good tool, it often means that it’s simple, but that’s not necessarily true. Speed in software is probably the most valuable, least valued asset. To me, speedy software is the difference between an application smoothly integrating into your life, and one called upon with great reluctance. Fastness in software is like great margins in a book — makes you smile without necessarily knowing why.
Nothing to add.
Even better still, applications that are not platform specific.
What is the point of fast software, if you have to go out and buy a different computer before you can use it!
Some of the assessments are a bit myopic, for example Photoshop in practice is much faster now than before, because new tools supplant many multi-step processes, so a single legacy step might be slower if you aren’t leveraging the new features and tools. To me this is often the case when I get the common complaint that the old way use to be better, it’s primarily because people don’t deal well with change and innovation.