Comment by allenu

The keyboard shortcuts should help a lot! If you can nail navigation from the keyboard, it'll go a long way to make the UX feel breezy.

I made a corkboard/index cards app for Mac and iOS called Card Buddy and I spent a lot of time working on the keyboard navigation there and it made a huge difference on the feeling of fluidity. For instance, even while you're editing a card, you can navigate to a neighboring cell and start editing it just through the arrow keys. That makes it super fast to jot down lots of notes right away. I noticed a lot of other apps would require you to move the mouse and double-click to edit somewhere else and even that friction makes those apps feel sluggish.