Yeah. 60% more responsive for something infamous for taking multiple seconds to launch is depressingly bad. That's "not even trying" levels of improvement.

The start menu should open essentially instantly (excluding optional animations) – 100 ms is good, 200 ms is somewhat adequate. They're aiming for somewhere between 400 and 1200 ms.

I hope for them that they underpromise and overdeliver because this does not inspire confidence.