Initially start windowed? (F4SE plugin)

[Shaidon7]

I have this issue of the game not proper starting at fullscreen, with the black screen on loading all the time. Running it borderless windowed fix it, but at the cost of some performance. The admin settings fix, don't work for me.

But I found I way to force it to initially run windowed, by holding the cursor over other app, like a new txt file for example, till the game show the loading icon at the corner, and I just ALT+TAB to it.

 

But, if possible, I wish for a F4SE plugin that would do this work for me. At least make so, that the game would be windowed at first, then I would ALT+TAB, or ALT+ENTER to go back to fullscreen.