all crossbows EXCEPT Cho-Ko-No
and Demon CrossBow are Capped at 11fps
these two "-60" bows cap at 7 fps (the ias needed is unbelievable)

"burrito" is not capped
just there is a speed limitation on Ballista's
the reason you can go over 25fps "client side"
is because a given computer only needs so much cpu speed/ram amount/ graphics card usage
to run at 25 fps
the requirement isnt that high
(about...)
1000Gigz Cpu
128 Ram
32Meg+VideoCard

and the game tells you the given fps for your computer running that program
your computer is just refreshing some pixels faster than they are changing