Bud, it is not about Ram. It is about CPU and that what sucks. You can get bigger Ram chip but CPU is CPU...
You get what you get and you do not get upset, right? Unless you have 3k dusting in a coat pocket for top of the line computer of course smile

Plus it might be just that Mac / OS handles CPU processes differently.
I know I am being a bit harsh on Izotope, because there are "ways" of making things work, but Izotope is generally known as CPU thief I do not want to compromise on project lanes etc, because I only get a few hours a week to record stuff. Fortunately, I got Izotope cheap, so no regrets smile