Illustrator version 22 is not supported on macOS 10.14 (Mojave).
Please upgrade to version 23 to resolve the issue.
An error occurred while saving the commentAlessandro commented
I have the same problem. Illustrator very slow choosing instruments, seems to freeze for a couple of seconds. Updated to Mojave and to Illustrator 23, deleted preferences. No results... Could you help me?
MacBook Pro 2017, 1 TB SSD, 16 Gb RAM
Graphic Board: Intel Iris Graphics 650 - Version: 4.1 INTEL 12.0.34 - Memory: 1536 Mb