I created an illustration on 1200x900px artboard (72 ppi) and used some stipple brushes given here: https://blog.spoongraphics.co.uk/freebies/8-free-stipple-shading-brushes-for-adobe-illustrator
Now, while creating this illustration, the performance was okay, there weren't much lag or irritation. But it takes a little time to save it.
When I saved it, the file size was around 87 MB. I closed Illustrator. When I opened it again, it took 1 hour to open it!
I'm sure it has something to do with the stipple brushes. But I want to know what the possible resource it is missing which makes it too slow? I checked task manager at same time and I saw my NVIDIA GPU (GeForce 940MX 4GB) was not used yet (it runs only when Illustrator is fully open), Intel GPU was used only 2%. Even RAM was used 6.5 of 8 GB.
My laptop specs are: 8GB RAM, i7 8th Gen processor, GeForce 940MX 4GB GPU, Windows 10
Everything else works fine but I feel little frustrated when using these brushes and I think I should have bought MacBook Pro.
So the question is: Why my laptop is too slow in this case? Would the same file open quickly in MacBook Pro?
(Below are the screenshots of resources used and the illustration I made)