There are many Axiom Verge maps around, but their goal is generally to be extremely complete. When you aim to go through the game as quickly as possible with as few items as possible (either for quick fun or to earn achievements), this level of precision is useless and even hinders gameplay flow.

To circumvent this, here is a simplified map that should help you earn the "Low %" (collect less than 40% items) and "Overclocked" (beat the game in less than 4 hours) achievements. This map displays level geometry, the necessary items to collect (all mandatory items plus particularly useful weapons) numbered in progression order, and useful health and battle upgrades (the black dots). It does not use sequence breaking.

Using this map, I could easily beat the game in 3h15 with 28% collected items.

Have fun!