I've had cursor-delay happen on every OS I've tried, in nearly every application, unless I was using Vim / the CLI. Except for Windows' CLI - that gets more worthless the more I use it, and is significantly slower than many other Windows tools.
Yeah, what's up with that? NetBeans is great in theory, but I type half a word and have to wait for a second for it to show me completions I don't even want... I've switched to vim completely now, not for any conscious reason, but just for the fact that I found running it to quickly edit a file and then staying there for hours.