[leptons]

I built a web app (started about 7 years ago) that had used hundreds up to about 2000 DOM elements that are all draggable with lots of interactivity. The app slowed to a crawl. I used DOM elements at the time knowing it was going to be difficult to scale up to thousands of items. Using React-dnd to make the elements draggable may have been the wrong way, but it was fine for proof-of-concept. But eventually it became a gigantic memory hog and would crash the browser after a while.

Konva.js solved the issue for me. It was very easy for me to convert this entire interactive piece into Konva.js, and performance is amazing. No memory issues now at all, and I can throw thousands more interactive items than I could before. It was very easy to reuse the interactivity code with Konva, and now my web application has great performance again.