For the moment I think we can say Android 2.3-7 on ARM. It looks like
your tablet is Intel, which I don't think works for some reason or other (if someone would like to work toward an x86 Android build, PRs welcome).
The vast majority of problems are related to LuaJIT memory allocation. Either it can be extremely slow or it can cause crashes.
This is what KOReader does by default:
https://github.com/koreader/android-...id.lua#L19-L22
These are ways in which a user can experiment a bit on top of that, although in patch.lua it might be a touch late:
https://github.com/koreader/koreader...ment-150629399