It can be, but ifyou havea very strick follow through, it will work well for you regardless of brace height. I always hear people say fast bows will punish you on your shots. A fast bow only punishes those who have terrible form when shooting. I recently picked up Hoyt's fast bow (The Vulcan) and at first was not shooting tight groups, but the flaw was in my form, not the bow. I corrected it and am now shooting 2" groups at 60 yards. Not great, but not bad.
Take Care and God Bless!
Ronin