Not sure Trey is on the right page .... maybe not even in the right book
Clocks ticking on the solution it's a doozy.
I did notice some Verbose logging that mentions:
[Violation] Added non-passive event listener to a scroll-blocking 'touchmove' event. Consider marking event handler as 'passive' to make the page more responsive.
Also happens with a 'touchstart' event.
Swiping is a tricky one.
Wasn't there something more on this .. here in the forums? Apart from your other post?