I've just changed name for this because I haven't talked about DD's G & Tness on here.
I'm wondering about this myself as DD's progress seems to have stalled. She achieved a certain level at the second assessment point of last school year and hasn't progressed any further, but their assessment of her effort level is going down.
Have had a civil discussion with the Headmaster at our last parent teachers (just happens that he is her teacher for half the week) and he believes she is coasting, doing the main body of the work, but not trying for the extension work (which is how they differentiate, the higher level work tends to be in the extension) because she knows the main body will do. Essentially she's not motivating herself and she's not being pushed, basically a 50/50 problem.
My main concern is she's happy and she is, so I'm not jumping up down or harassing the school or her , I am looking for some improvement at the next assessment point. We have talked to DD about how she can improve things and I'm expecting the school to hold up their end.
I've started to push this this year because DD is nine and I want her to get into the habit of stretching herself before high school. I've known several bright children who strolled through primary and high school to find that A level's and above are a nasty shock because they actually have to try.
So my answer would be, based on my DD, I wouldn't worry yet. Your DD is still finding her feet at school and I'd be more concerned about social skills etc, just keep an eye on things.