404 Ritual precursor tablets not found

It is nearly impossible to sustain Ritual farming since Patch 0.3.1.

I do one Abyss and get three tablets for it.
I do one Breach and get two tablets for it.
I do 40 Rituals (ten maps each with four altars) and get 0.5 tablets for it on average.

The drop rate for Ritual Precursor Tablets desperately needs to be adjusted to accommodate the lower monster density found in Rituals compared to Breach/Abyss.