Atlus's official P4U PR Blog now posted a statement regarding the "online match's time lag issue on Xbox 360 version of P4U" (that we reported yesterday).
They apologized and said they are "currently looking into the cause," and it "will take time."
They also suggested users to try the following settings as a temporary fix.
1. Custom Match
2. Same Area Only
3. Good Connection Only
But it probably will not help, since Kubo did that exactly.
The PR blog said they will post a follow-up report and asked the users to wait a little while.