Perhaps the biggest contributor to what some call "Zombie" traffic, or non -converting traffic, is the rapid proliferation of mobile devices that most users don't trust to use for payments.......yet.
Have you deployed any new payment options like Apple Pay or Google's Adroid Pay or anything similar?
October's issue of VSR (Vertical Systems Reseller) mentions the September 28th release of Samsung Pay in the US that has produced over $30million in transaction in it's first month in South Korean markets.
If you know if any good online mobile wallets, do share please.