Readers prefer more pages in an update, but single pages is better for visibility, because likes are what make you appear in the Popular rankings, so milking likes by regular updates is an effective tactic. Also more episodes is appealing to readers on Tapas who like to binge, but don't worry too much, it'll build over time.
I try to balance the thing my readers like with what's best for growth by doing one update a week of two pages made into a single episode.