When shooting double action with your revolver, the cylinder locks and the hand continues to push past the star just before the hammer drops. This action is normal, and the increase in effort should be uniform for each chamber, approximately.
It is impossible to say over the internet whether yours is just right, or too heavy. If the gun is new, lubricate the star after cleaning and continue to shoot, which does polish it somewhat.
Suggest you get someone who knows revolvers to check whether yours is typical, or your hand to star fit needs work. DO NOT mess with it yourself or let Bubba mess with this! It is serious revolver smithing!