TLIK, Nev.
“Sefaria is a memory heavy website”
Not if you download in entirely, I downloaded all onto my SD card. Its MUCH less memory than Heb books will ever have as its digital text. I takes up a gb plus and you have off-line access to T’nach, Halachah, (rambam, shu”a and most nosei kelim) Shas and many others.
The features are also, no way even comparable, you click on the text (anywhere in Tanach, Shas, Shu”a) and you have the meforshim/midrashim…M”M, etc on the side.
Perhaps try to updating it.
In any case, its apples and oranges…