Renaming/deleting the <path to game>/Game/ME?/BioGame/Splash/PC/Splash.bmp file is all it needs, perhaps add this to the 'skip intro videos' portion? Load time appears improved for initially launching each game from a cold reboot of the PC as well, so it appears that SplashScreen window which is forced 'on top' of the desktop is a fixed arbitrary timer not actually waiting for a background task.
Topic on Talk:Mass Effect Legendary Edition
Done! But keep in mind this is a freely editable wiki. While the page is currently locked to registered users, it doesn't take much to register :)
No hurry folks, the best solution will come soon