u/Advanced-Win2709

After flowing a few world schools rounds, I have noticed that the debates get really messy on the flow towards the middle/back-half of the round. I understand that substance isn't the main factor going into the judges decisions, and that time to think of solid rebuttals practically non existent, but a lot of the speeches in the final rounds have little to no signposting(in a more traditional PF sense) and the clash between arguments becomes kinda hard to follow. Is there something that I am missing? or is this just the product of the WSD format not leaving enough prep time for super nuanced and organized rebuttals.

Are judges supposed to evaluate world schools in the same way that they do pf and ld? If not, then how do they evaluate the round