So except for the new, reduced applications and some changed defaults in the settings it does not seem to be any different than the normal 8.1? Or am I missing

So except for the new, reduced applications and some changed defaults in the settings it does not seem to be any different than the normal 8.1? Or am I missing something? The "tuned Play Store" looks like it just has a new featured pane but if it actually ships with performance enhancements I can't understand why they would not ship them to the defualt Play Store. Mine is terribly laggy on my Nexus 6P.