That's a bit harsh. As someone who regularly uses flash cards, creating them really is a bottleneck. It's a lot quicker to handwrite something on a paper. It's not as effective, but it definitely is faster.

Then get better at it. I'd constantly add 3 words real quick while I was in some restaurant's bathroom. Using templates for various kind of information makes it so you're only typing in information, no formating. Also don't forget to calculate in all the work of having to actually store, organize, and carry around all that paper. Suddenly the digital version doesn't sound like more work anymore.

i also find that spatial layout and a fixed sequence can help with recall. flash cards are supposed to improve on that, but for me, personally, the spatial component is helpful- especially when related concepts are near each other.