My wife is attempting to run Lightroom on our late-2012 Mac Mini: Intel 2.3GHZ processor; 4 gigs of mostly unused RAM, OSX 10.9.5. She has a Nikon D750. We've never done this before and we're neither sophisticated techies nor sophisticated photographers. Everything about Lightroom is prehistorically, insanely, bald-makingly slow. My inclination is: we're going to have to buy a computer with a faster processor and more RAM. Any help?
Thanks in advance. General computer-purchasing advice (I'd prefer PC to Mac) welcome as well.