The strategy for acquiring the eldritch tab is essentially to get as much warp as possible, as quickly as possible, then wait for a warp event.
In order to do this, focus on warp giving research going from Taboo >> Dangerous >> Moderate >> Minor . If this isn't enough, create flesh golems for a cheap warp-giving source, ALWAYS use crimson rites cas warp, and eat zombie brains as well.
hope this helps for people who want to get this tab quickly cas warp can be annoying to deal with at times.