You can try creating the scene graph programmatically, thus avoiding FXML entirely.
-andy From: openjfx-dev <openjfx-dev-r...@openjdk.org> on behalf of Davide Perini <perini.dav...@dpsoftware.org> Date: Friday, August 25, 2023 at 00:45 To: openjfx-dev@openjdk.org <openjfx-dev@openjdk.org> Subject: Preload fxml to avoid slow show() Hi, I have a tabpane with 15 tabs, every tab has his own controller and it's pretty crowded. On a 13900K CPU, show() method requires more than 750ms, this feels laggy... After the first show() call, loading the tab pane is much faster... Is there a way to "preload" an fxml? I tried to show() and hide() it immediately and it seems to help, but what is the best way to do it? Thanks Davide