Here. I do this for behemoth, odin, and svara. on pc and it really helps. I do it on ps3 if I am getting issues.
http://www.reddit.com/r/ffxiv/comments/1mxtzp/cant_see_fate_bosses_odin_behemoth_fix_inside/
It really helps. you can even customize what you see. I generally have everything on. but when I do huge fates I turn it to hide and then change it so i can see the hp/name of the targeted engaged mob. and keep my party members hp bars. otherwise all other characters and their pets/minions names, and floating text i turn off.
I forget what "effects while in motions" are but ya everything else really helps. read the link and love the link. Fixes issues for big fates for pc. and helps with ps3 issues but I doubt any ps3 will be able to do behemoth/odin fates even with these fixes.
Enjoy