DSR update?

How often does the DSR update? I got 4.9 for item as described and 4.8 for shipping time for a week now. Even if 1 week ago i had 10 feedbacks and now i have 50.... it was remaining the same all the time.

The DSR updates in real time : when buyer leave you a feedback with 4 or 5 stars , your score is usualy upted immediately.

I saw sometimes its take some minutes to see your evalution from buyer. i alredy rated my self and the feedback appears usually in few minutes after leave

It happend to that thebuyer feedback you without leave you DSR STARS , so , your DSR will stay at the same position friend