Higher voltage battery, weaker spring, DSG gearset, high speed gearset, or high speed motor. Anything that increases RoF will improve trigger response.
Thanks for the review! BTW I'm currently designing a new Chimera trigger board which will no longer require the cutoff lever. These will be sent out for free to all current owners of the V3 gearbox Chimera (to make up for releasing it so soon), so just a heads up.