Efficiency/precission tune for a Benjamin marauder .22 unregulated?

I look at it like I can't have everything the Marauders I have like to be smacked hard and that generally hits the efficient spot it's more critical on the fill pressure I keep that within a strict spot like say 27 to 22 for example
from what ive experienced thats about the sweet spot on mine, to change speeds faster which should i adjust first hammer stroke or hammer tension?