[mahesh-hegde]

Is slowness of intelliJ IDEs attributable to Java alone? Android studio feels more sluggish than vanilla IntelliJ.

I had to write an app in JavaFX for a course project. Compared to most desktop apps written using electron, it was fine. But by default it looks like an old desktop app, for which you'd expect some more performance. It maybe still good for enterprise apps where you have some Java programmers.

Also, startup time; It had some noticeable delay.

I tried flutter recently; If you ignore that apps look like mobile apps, flutter desktop apps feel more responsive.

As for paradigm, recent UI-in-code frameworks like flutter seem superior. In JavaFX you can write Widgets in code or in FXML, but java the language or APIs don't fit into that paradigm like Flutter does.