I have researched this and I have access to people who speak the original languages of the Bible fluently and what I've found is that the contradictions are plentiful and abundant. Very often they are so clear and blatant that even the vagues translation cannot be the culprit, like verses saying "Do X" while others saying "Don't do X".

I haven't read the whole Quran even in translation and I haven't gone into much depth with it.

Examples of things that I think are in the Quran that I find immoral are rules like punishing apostasy with death and stoning homosexuals.