We have the fix available in the latest release. Please update Illustrator using Adobe Creative Cloud application to the latest build for version Illustrator CC 22.1.
Please refer to our knowledge base FAQ – https://illustrator.uservoice.com/knowledgebase/articles/1844590 if you face difficulty in update.
Or get in touch with us at any of the other support channels – https://helpx.adobe.com/support.html
Ashutosh Chaturvedi | Sr. Quality Engineering Manager – Illustrator
Adobe. Make It an Experience.K Park commented
I've got Ai CC 23.0.3 and am still having this issue, amongst others. Single clicks are delayed by several seconds each time if they register at all. Deadlines looming and I am not happy about my subscription. Running Mac OS Mojave. 10.14.4. — 3.6 GH Intel i9. 16 GB RAM. Radeon Pro Vega 48 w/8GB.