SketchUp & Layout Mac hardware performance Question

I have a 2013 MacBook Pro 15 inch retina, 2.7 GHz Intel Core i7, NVIDIA GeForce GT 650M 1024 MB w/ 8MB ram, OS X 10.9.5. I have very similar slow issues with sketch up Pro 2017 and lay out. My models are typically in the range of 70 MB, in my layout models 150MB. I create elaborate architectural models with very few complex components. Will I notice a difference in performance by purchasing a new MacBook Pro, or possibly upgrading my graphics processor? I cannot upgrade my 8MB ram on this particular computer, but I’m not running other programs anyway. Hopefully somebody has some experience with this. I cannot determine if my graphics processor maybe slowing me down. Thanks for your input.

I am also having this problem.
SketchUp works OK but when I import to layout it’s painfully slow and I cannot dimension anything without a major headache.