When I use \includegraphics on large images, BaKoMaTex hangs whenever I scroll to the page with the images.
The hang is even worse when the files are on a network drive.
I understand that it can take a long time to load these files, but there is no reason to make the program hang for that.
Just display a placeholder and do the loading in the background in a separate thread.
All the webbrowsers do this too.