After upgrading to 2018.1 the project which I work is unusable.
it is constantly freezing, I click on something and freezes for around 10 seconds. I work more 5 seconds, click on something, and more 10 seconds froze.
I work on a very big a complex project mixing Objective-C and Swift. It is enabled the tracking for AppCode improvements.
It is sad because I really like the project and would like to use it more, but have to switch to XCode which I don't like, because of performance issues.
MacOS Sierra 10.12.06
MacBook Pro (Retina, 15-inch, Mid 2015)
Processor: 2,2 GHz Intel Core i7
Memory: 16 GB 1600 MHz DDR3