The other day I was working on a React-based library of huge, reusable SVG images, and I ran into performance problems. Just kidding, I've never had a problem I'm solving here, but I've had great fun working around it. I wanted to make components producing mostly static DOM as fast to render as humanly possible. And I'm not talking just about updates — I wanted to optimize mounting. Of course, normally you'd just skip remounting and hide / show the component with CSS, but that's not fun eno...
