Squirrly is addressing them in Focus Pages already.
Page experience has been one of the main reasons we’ve created Focus Pages and it goes a little beyond just page speed and coding propriety. Time on page, bounce rates, number of pages visited are also very important and we’re getting clear signals that their importance is shifting.
We already address speed and https and give resources to our users, so they will be prepared for the update.
Because we get so much data from so many websites, our Chances of Ranking algorithms will get recalibrated with new data once the update fully goes live.
The probabilities will most probably shift to favour some of the ranking factors from this update.