Are angraecum leonis slow growers?

[Daenerys]

I've had an angcm leonis for a year now, and in that time it has grown a number of roots, and almost finished growing a leaf. Compared to the rest of my orchids, this is remarkably little progress for a year's worth of growth. Right now, the plant seems healthy enough, but it's not really growing.

It was supposed to be blooming sized when I purchased it last summer (there are 6 leaves that are just under 5" long), but didn't bloom for me yet.

I grow it in vase culture and water daily. It gets as much light as my cattleya, which bloomed a few months ago.

Are these just a really slow species? Or is there something I can do to give it a bit of a kick?