When is Mac performance going to be addressed?

Being on a 5.1 MP, this topic is a tough consideration.
I’m on NU 7 and now considering the upgrade to 8 with the current sale. It’s mostly that I want to use Izotope 7 and it’s not going to happen, at least well, w NU7.
Part of me is thinking screw it, maybe I should just get Reaper.

In my case, I work with tape and a pretty simple DAW set up. I use some of Nuendo’s features but by far, don’t need many that others here use for gaming and voice work.

Still, having (by a fluke) been on Nuendo since ver. 1… I hesitate. Yet another upgrade is a tough sell over here.