There's keyboard shortcut's that anyone could benefit from. You don't have to be a programmer or a video editor to save time with shortcuts. Even something as simple as Ctrl + Backspace to delete a whole word at once will add up over time.
Using snippets when coding can save a lot of time. I have a snippet for every import I commonly use and also for things like creating a skeleton of a React component
Of course this depends heavily on which software you work in. There's Emmet, which is a well-known extension, but my favorite is Jumpy, which I can use to quickly jump to a different place in the text. Vim has a lot of "motions" that you can use for the purpose of jumping around quickly in the text but Jumpy provides a single quick shortcut to achieve 90% of the motions you could want.
Yes, even something as radical as buying a new computer makes sense. The math checks out. You have to load something literally hundreds of times a day and savings of couple seconds each time adds up quickly.
An average computer should last you at least 3 years. Over that period, 1 second savings 100 times a day at $30 an hour gives you $900 to spend. Can you get a better computer that achieves that saving for that amount of money? I know that I could but if you're already on the latest generation you might not.