[OT] Why mobile web apps are slow

[Oleg Kuporosov]

  Thanks for the link.  In my experience, mobile networking is
> slow in general.  When I run Speedtest on my phone vs. a laptop 
> sitting right next to it, the phone has a fraction of the 
> bandwidth of the laptop.  So there's even more at issue than 
> raw JS performance.

Sean is right, this is only one side of problem and very often 
not a major, another side is mobile network bandwidth and 
infrastructure load.
It is usual for corporate offices/cities (sharing), weak signal 
conditions and
movement you will have quite limited bandwidth even for LTE/3G 
cases.