So far in my experience, length is irrelevant if your updates are well paced.
To make sure they are well paced you need to ask those 2 questions:
-It is relevant?: does it helps to advance the story or establish/develop characters?
-It is entertaining?: does it makes reader feel an emotion? (other than boredom and dissapointment on the update ) it could be laughter, excitement, horror, sadness, curiosity, etc...
If the answer to both is yes, you are in a good place.