Rockshox Sektor R - soft compression?

#1
Rockshox Sektor R coil fork, doesn't seem to have any compression dampening - very soft and squishy. For reference, I've only owned a super stiff Arglye (which I have serviced a couple times, dropped travel, restored full travel, etc.), so maybe I'm not accustomed to a 'compliant' fork?

Anyhow, my plan is to step up to a Firm, or X-Firm spring, but is there anything else I can/should do to service this fork and stiffen it up?

Any pointers, links etc?