Well previous Overlord episode was the end of book two while this one is the beginning of book 3–it gets better.
That being said, they did cut a bunch of things out to fit everything in up to the part where Shaltear runs into the group at the end of the episode.
! The restaurant scene at the start is expanded upon as well as the carriage ride. There is more discussion between Shaltear, Sebas, and Solution to flesh out their characters.
! Some info on Solution's eating habits.
! There are some scenes with the vampire brides and Shaltear and the attack at the cave entrance. (One of the brigands from the carriage was used as a flesh balloon missile to attack the cave entrance guards).
! They cut about half an episode worth out.
It maybe would have been better to have the previous arc trimmed one episode and then have this arc "Bloody Valkyrie “ expanded by one. There's a lot of info to fit into 4 episodes