Doing good DPS in FFXIV is actually harder then a lot of other mmo mainly due to the game not having an offical addon api. If FFXIV ever gets offical addons dpsing will become much easier. Anyone who did play wow can tell you that dps was so easy due to the number of addons people made for it. From things that tracked buffs/debuffs/procs, to rotation helpers which tell you what buttons you should be pressing.