Huge different loading times (editor/packaged)

Hi all, I am wondering why re-opening a level in the editor is so much faster then in the packaged version.
At first when I started working on the game the packaged version was still fast enough, but now its around 10s independent of the level, while in the editor it has always been way faster

EDITOR

PACKAGED

Is there anything I can do to get faster results?
Im using the “Open Level” node, btw

Thank you