Speed Improvements

[RWAP]

Thinking about general speed improvements, is it worth enabling 64bit Linux in /boot/config.txt I wonder?

The problem is having to maintain two different SD card images - one for earlier 32 bit systems, and one for 64 bit systems.
There may be a speed improvement - but is hard to know without recompiling everything.

I did add some additional lines to the /boot/config.txt to try and help start up speed:

camera_auto_detect=0
enable_uart=0
disable_splash=1
disable_poe_fan=1