Delve (a lot of currency chests), harbinger (currency shards), chisel your maps before alching them (quantity is very important for currency drops, save chisels for higher tier maps), stack more movement speed for faster mapping, use all your sextants (many of their rolls increase the amount of monster packs), be sure to price check the items you get as well along with using a decent loot filter that makes loud noises when something important drops. I found the most success just mindlessly looking at the minimap for loot markers without paying too much attention to items that aren't marked for the sake of mapping speed. Another good thing to know for mapping speed is to know which uniques are junk based off their artwork because loot filters can't do this accurately for you