I set it to tolerate longer processing times, and to open the file after saving so I can sanity check that it got everything. Works great at faithfully saving a page with images as it appears in browser, and saves so much time.
You might also have a look at https://github.com/ArchiveBox/ArchiveBox
There is also the option to have the contents compressed, and (a separate option) to keep the plaintext of the file uncompressed, which will likewise still allow indexing to work while saving space.
Is this still the case?
I can still right-click > Save any page as .html, but that doesn't guarantee server streamed stuff, media, images, etc. will be preserved correctly.