Vernie

Same observation on linux running under MacBook Pro Retina (mid 2015), loaded a little faster with Cura 3.2 but I believed this can be made even better at this time of computing technology. Solid view is instant response on viewing at different angles but layer view is very slow even on models at 3 cubic cm size as if it is hooked unto some slow rebuilding routine on every move you make just to view from a different angle. What I love about Cura is it is spot on at producing prints, I always get the expected size of prints. Cura 3.1 loads around 33 seconds on linux while Cura 3.2 at 8 seconds. Just to get some rough figures, I use "time" program to measure the loading time then close as fast as I can when Cura able to display itself. It requires several sessions to get consistent reaction time to close the program. The reason for being slow on linux could be the loading of its own version set of libraries, a sacrifice made to make it more portable at a price of speed. There's still more room for improvement and thank you to people behind Cura for making progress.

On macOS, the zoom-in tend to go more on the right side and down like diagonally inclined and it is hard to zoom-in on the center of the model. As a new cura user - I thought this is how it behaves (which is so odd but I have to accept it), so I search for tutorials and youtube videos only to find they are able to show how zoom function should behave naturally like everyone should expect. On the linux version however, the zoom and other navigation functions behaves naturally. I would say on the macOS version this is a serious bug in terms of navigation. The macOS version of cura 3.1 however is faster in performance when starting compared to the linux version which loads slowly (maybe due to loading of its own libraries). However, once the linux version completely started, it is really fast - faster than on macOS. I hope this serious navigation issue on the macOS version can be solved. I would love to work fully under linux but the sketchup program I used is on macOS. I used the same hardware (dual boot macOS and linux) for comparison of the cura 3.1.