Really?
The OS X cursor is that problematic for a few of you here in this posting!
Really?
I use a slightly higher screen resolution and I have no issues doing precision work on my 27 inch iMac.
The cursor doesn't present any issue for a lot of users or more users would be complaining about it.
I use a CAD app (High Design CAD), vector apps, digital painting apps that I create highly precision and detailed images, digital paintings and drawings.
I use a drawing tablet, as well as a visual drawing tablet app and smart Bluetooth stylus on my iPad Pro connected to my Mac and I can get real precise with no problems what so ever.
With most CAD and vector apps, you know you can adjust the line snap precision, don't you?
You can, also, zoom and pan?
I'm 54 years old and occasionally need to wear my glasses when I work on a computer.
How old is everyone here complaining about the Mac's cursor "precision"?
Geez!...
I can understand not seeing the cursor at the size it appears at a Mac's native screen size ( I prefer to increase the screen resolution instead to get bigger UI elements), but the there is nothing wrong with the OS X cursor's precision.
In the OS X Settings app under mouse/trackpad control, you can set the "speed" of the cursor so it is slower and not so fast to precision place it better on the screen.
You can, also, adjust the cursor acceleration so it does not "zoom" so fast across the screen aiding in more precise cursor placement and movements.
There are plenty of options to adjust the OS X cursor's behaviour to get it to be more comfortable, controllable and precise.
Plenty precicision for me and the majority of creative artists and CAD users.
Good Luck!