This means there are many people all over the world playing at the same time so yes it take a while sometimes for the  game to catch up with the tabulation 

as this is not a bug I will move it to discussion.

i have 191474 points but the score board only shows 190.8 

plus it is very slow adding new points earned

http://prntscr.com/njtf5t

typical !

while i was doing this it corrected

http://prntscr.com/njtfta

 

If you refresh the game it will usually update your score.