I raid 25m HC with a more "current" system than yours *aside from GFX card, 560Ti* and my FPS is similar to yours. Playing Ultra in a 25m raid will never, under any circumstances, give you 60FPS solidly during combat. As has been stated, there is no combination of hardware available to a consumer right now that can achieve this.
If you want decent performance, drop Shadows down to "Fair" and disable SSAO / Sunshafts entirely. Set View Distance to "Good". This will net you 35-45FPS during combat. Keep spell effects at ultra to avoid fire / void zone stuff, but everything else should be at "Fair" to "Good".
Again, there is no way to attain 60FPS with High settings, or Ultra, with ANY hardware currently available in a 25m environment. There are literally hundreds of threads here on MMO saying this.