I just work on a 5600km 2018 Trail. Belt had enough wear deflection was bad, belt dust piles everywhere

It drove poorly @ engagement & just above. Driven buttons were worn enough I could not help myself but to replace them, ramps on the helix matched the wear on the buttons so I polished them.
Such a BS job to change the belt, deal with the wear on the buttons & helix. The drive clutch was perfect so I re assembled & re clocked to B2.
I'm just under 1100', set the cluster to rpm & went for a quick spin.
Disappointment would be an understatement, cranking the preload on the driven to compensate for bad calibration isn't the solution.
I've read how others have calibrated the factory set up & agree with what I would call a work around. Lighter rollers & more preload.
The stock calibration for altitude is bad, in true CFMOTO fashion they offer "zero" add taller heavier wheels & tires

Your handy & have tools around the house

myself I would be chasing a helix angle & higher compression spring. Of course I would be modifying the factor rollers

rather than buying aftermarket.