It then goes on to point to the Suffering from Buffering node, which doesn't offer any insight on the OP's issue.

I beg to differ on this point. Did you follow the link? It answers the OP's question thoroughly (under the header "Disabling Inappropriate Buffering").

I must admit the rest of the node is subpar, though. The 1st and 2nd para are off topic, and the 3rd para gives unsubstantiated opinion as fact. Nothing damaging, though.