For the Rpi 3, if you are using a class 10 micro SD card
dtparam=sd_overclock=100For any arch device
Compiling can take long on the Pi, a little faster on the Odroid but can still be tedious. If you have more than one arch linux device on your network, install Distcc on all of themhttps://wiki.archlinux.org/index.php/Distcc
Distcc is a program to distribute builds of C, C++, Objective C or Objective C++ code across several machines on a network. It should always generate the same results as a local build, is simple to install and use, and is usually much faster than a local compile. The cool part is one can use it together with native Arch build tools such as makepkg.
Especially helpfull if you need to compile LMSFor devices with multicore processors
sudo nano /etc/makepkg.conf
# for Rpi 2 & 3: MAKEFLAGS="-j4"
Hope this can be helpfull to anyone, apologies if it is common knowledge.