I have this S510; tuning feasible?

my chronograph shows it has high Es and Sd values. I’m thinking of tuning it. Anyone here familiar with doing so?

I’ve written to Air Arms about my view of the rifle’s air usage. It wrote back that people like full power, and did not address my view of the inefficient use of the air. It was nice to hear back from it. At least it didn’t just blow me off.