Regarding the original question of the thread:
Maybe try Bitwig. It is the most modern DAW approach with amazingpossibilities. Quite similar to Renoise, when it comes to meta device routing. But here Bitwig almost is superior over the Renoise approach: So you can multiple nest containers, have parallel chaining and also complexside chain routing. So as a result I can do really complex meta stuff. Also you can insert any plugin to feedback fx, which turns the bitwig delay into a fx with endless possibilities.
The gui is really fast and provides constant 60fps, so it’s obviously fully gfx hardware accelerated. Rumors say that bitwig 2 could be released on namm 2017 in january. If you visit #renoise chat, you will see that actually most renoisers there already switched to bitwig and maybe can answer you more questions.
Of course Renoise is much more advanced in some points over Bitwig, when it comes to scripting/tools, sample mangling or meta manipulation thru formula device. Or pattern editing I seem to be the only human being on this planet who prefers pattern editing over pianoroll… On the other hand, automation editing is quite retarded in Renoise, but a bliss in Bitwig. There you have everything like spline-curves, fancy pitch curves, high resolution.