I've been curious about Capture One Pro and decided to try the demo. While importing my Lightroom catalogue, it used up all available memory (RAM) so that my computer became unresponsive and I had to turn it off. After deleting the partly imported Lightroom catalogue and the images in it from the Capture One Pro catalogue, I tried to empty the trash in Capture One Pro to get rid of the previews; this caused Capture One Pro to become unresponsive and I had to use 'Force Quit' to close it. I tried several times, each time with the same result. Finally, I ended up deleting the whole thing from my hard drive.
Have I for some reason been unlucky, or have other Capture One Pro users had similar experiences?
(Computer: MacBook Pro 2,9 GHz Intel Core i7, 16 GB RAM; macOS 10.14.)