That's a relief. They are finally taking the issue seriously then.
There are also indications that they are going to lower the display path latency, which also stands several times higher than what is in iDevices. It just takes some time to get a certain class of software architects to realize that buffering a frame several times each step might not be the smartest way after all.
Everybody says this and yet programs like Caustic seem to do a fine job in my experience.