The one I have has a match chamber in it and the trigger is long but can still shoot desent groups for a handgun. Also comparing this .22lr to a XP100 is like comparing basic single shot 22 rifle to a CZ 455. Whats the point. Also with the XP100 , the plastic mid body stocked version had a no so great trigger for an "accurate " firearm when compared to the wood stocked rear grip repeater version. Or comparing the keystone to a T/C contenter rimfire. Not in the same class of firearm.
Do some polishing of the bolt parts and trigger and lube with a better synthetic lube and shot it. It does get better with use.