Cubasis on iPad 1?

Hey There,

A family friend is giving me their old iPad 1 (they need to have the latest and greatest at all times).

I’m wondering what the final verdict is on whether or Cubasis will work on the old iPad 1. How many tracks, bit rate and resolution limits?

Steinberg Cubasis website says:
iOS 6.0.1
Device generations and polyphony:
iPad 2 (48 voices), iPad Generation 3 (64 voices), iPad Generation 4 (64 voices),
iPad mini (48 voices)

Apple App Store Says:

Compatibility: Requires iOS 5.1 or later. Compatible with iPad.

even on my iPad 3 the last cubasis with the song demo goes 70% 80% cpu & had some crackle ! cannot imagine it on iPad 1