Its supposed to be that way. Everyone's is. It's split like this for live chess ratings:
Less than 5 minutes = Bullet rating
Less than 15 minutes but greater than 5 miutes = blitz rating
Greater than 15 minutes = Standard
Increments may also change the type.
Seeing your profile, your blitz rating(see above) is 606, your standard rating is 915, and bullet rating is 1014.
So, your rating depends on the time control you play.
When I played at 10 minutes the first time my rating started with 500, but when I played with any other time it started above 1000-1300. I thought this was normal at first and thought it was supposed to be different for each time but I asked several of my friends how theirs was and their ratings for all different times were the same. Why is mine different? Is it supposed to be like that? Where i go to play is i click play one the top left, live chess, then ten minutes. I'm new to the website sop any help would be appreciated.