Fret height is largely a personal preference but there a few things to might want to consider before changing. First, be aware that changing frets is very hard on a fingerboard and is best done only when the frets are worn out or lifting enough to interfere with your playing. Next, the higher the frets the more you fretting finger pressure will affect intonation. This will take some adjustments in you technique as will position shifts and portamentos. Personally, I don't believe higher frets necessarily make barring any easier or more difficult. I think that is more related to neck shape, setup and hand position. Before changing you might want to consider playing some instruments with different fret heights just to get a "feel" for some of the difficulties or changes you might encounter. I know they aren't that same as your instrument but, if you change frets, your instrument will also feel like a different instrument. If you are unhappy with your instrument as it is you might want to consider taking it to a good luthier, discuss with him/her what your issues are and maybe have the setup changed.
Best of luck,