There are medical devices and stuff that will always require slow deliberate testing and changing.

If you have an application that real people use in everyday work and depend on stuff not moving under their feet. Execution speed is not something you aim for because you have to adjust to speed of users adopting changes.

As a startup owner of course you can’t really care about those people using your software because you have to pivot as quickly as possible to an investment that pays the most and boring every day app is not going to be a unicorn.

There is another option at the end of the spectrum. You aim at posthuman world where humans are not required and your software doesn’t have to bother with earning money or users that are slow or have emotions.