Namedpacman & torcida,

Don't confuse the names of the two mods; fastern9 is a cgroups mod that modifies system files to speed up some processes by changing its priority while also changing the I/o priority so that generally you get a more responsive/faster device...

Faster N9 Transitions is a transitions mod; it doesn't play with system-level cgroups mods etc but simply those transitions when you click something to the time they transit into your screen are quickened up...For example if the stock transition for opening a conversation is Xms, then faster n9 transitions reduces the Xms to a lower value so the transition doesn't "waste" your time...

Both can be used at the same time without any adverse effects...