High cpu usage after August 2017 update

[sam_nazarko]

@fzinken

Ok, get a coffee when you start the compile, on the Pi2 it took 8 hours.

Result of 17.3 is as expected Home Screen CPU is half of that of 17.4 and even the submenu CPU has dropped compared to 17.4 submenu (all on OSMC skin)

You have cached build now, so future builds will be quicker.

Now, I’d pick halfway between: Comparing 17.3-Krypton...17.4-Krypton · xbmc/xbmc · GitHub and adjust the commit SHA1 in build.sh and test again.