here's the thing... you're expecting a low end fork made to fit a low price point to perform like you THINK it should, but never will.
XCMs are at the low end of the "MTB" forks SR Suntour sells... they kinda suck, and are HEAVY too.
i already passed along important info(basic setup info, shock pumps are needed, how rebound effects the traction, etc... )... you then insulted me and this forum.
get the pump, then , HOPEFULLY, learn that SR forks suck no matter who sets them up, and get a BETTER FORK, which will also lighten your bike by 10% or more.
vegan owns a bike shop and works on bikes for a living... i'm a semi-retired/disabled Mechanic/Machinist, and have worked on bikes in my small Co-Op shop for over a decade...Some of the folks here that take time to help folks like you have been working on bicycles, Exclusively, their entire adult lives... and a few are retired from companies that built bikes you would love to own.
just for some more basic info..

oh, and the damper assy. in the "lockout" side of the fork... they fail.. sometimes when Brand spankin' new... they are pressurized with nitrogen, and leak easily.
the rods also break on occasion... and the older style plastic knobs get over-twisted/stripped by people thinking they're "stuck" when the lockout breaks internally.
the replacement knobs are aluminum, indicating that SR is well aware of the failures.
the SR Suntour Warehouse is a nice 1.5 hr.drive away, on the other side of the Columbia River.... they tried hiring me a few years ago.