I agree that the cam needs to be timed to be most efficient.
You really need to have the bow checked because the problem could actually be a week limb and if that is the case you would be well advised to replace it or both if you could talk Mathews into it but many have tried and few have succeded.
CBM,actually the cam 1/2 of mine hasn' t moved.[:-] Of course I had the factory strings replaced from day 1 with some strings that a friend makes and they were prestretched before I got it back.