I don't know what it is about Amazon software, but at least in the Apple ecosystem, it's terrible. I downloaded the macOS version of the Kindle reader because I

I don't know what it is about Amazon software, but at least in the Apple ecosystem, it's terrible. I downloaded the macOS version of the Kindle reader because I was reading a programming-related book. A single page turn would take seconds to complete on a Mac Pro. I ended up profiling it with Instruments. It was a QT app that they had obviously ported from another platform and done no performance tuning on. It turned out it was redrawing the page 4 or 5 times, and allocating and freeing something like 40MB of memory on each redraw. It seemed like just having a statically allocated 40MB buffer would have solved the problem, but who knows? It was pretty appalling. The ratings for their own software on their own web site show all the problems.[0] [0]https://www.amazon.com/Amazon-Digital-Services-LLC-Download/dp/B00UB769KC?th=1 https://www.amazon.com/Amazon-Digital-Services-LLC-Download/...