I will agree with the 'silver lining' comment. All that, and I found with an octo-core manager app in the Play Store that works pretty well (free version=noticeable improvement, paid module works to I'd say, 90%). Just like my Duraforce Pro, the zmax pro is lagged down by the system CPU management function, compounded by the bloat to a small degree.
The *paid* ($2.99)app I mentioned made a HUGE difference in stability and speed when implemented with nixing some battery optimization settings. It's a pain in the ass having to do all of this, but I'm finding the Zmax pro is not nearly as bogged down as some others. It COULD be a great phone indeed... If root happens first f%$ing thing I'm going after is CPU settings that are literally crippling this phone.