There are other controller settings that may be worth messing around with, namely the target filtering. By default Up/Down will cycle through party members while Left/Right cycle through pretty much everything else visible on screen. You can limit "everything else" in the target filter settings. For example, you can set it so if your weapon is drawn it will only cycle through enemies. It's not perfect but will cut out some of the targeting non-sense, play around with it and see if it helps at all.

PLD in particular has a lot of abilities and at level cap Cover is the one ability currently left off my cross hotbar setup. It can be fun and come in clutch on occasion, but it doesn't seem to be a frequently used ability anymore.