It couldn't run on ps3. When they decided to support ps3 for arr, you have to gut everything for that ancient tech.

additionally arr combat style doesn't support that sluggish movement.

Why they decided to create a brand new mmo to support a system from 2006 when it's next Gen version ps4 was already out baffles me to this day.

Ps2 was launched in 2000, ffxi in 2002.
Ps3 was launched 2006, Arr in 2014. Ps4 2013.

Stupid things happen when you make an mmo for an 8yo decrepit system but want it to run for another 8 years after.