That APU is woefully underpowered....it's a HD 6350 integrated with the CPU.

Also the CPU is only a dual core @ 1.65 ghz. You may lack the oomph needed to power the game mate :/ The 6250 only has 80 unified shaders...

One thing I can suggest is checking AMD's website. The 13.8 beta drivers they are testing is the first driver to offer official support and performance enhancements for ffxiv online. I downloaded it and it helped a lot, but that was also with a 7870 ghz edition in a desktop...and a 6 core cpu @ 4.2ghz