Does this only affect Illustrator or is this happening on other software?
What is your setup? What version of Illustrator are you on?
Only on illustrator, after and photoshop i dont have this problem. I tried all illustrator versions avaliable in creative clooud and i have the same problem. My computer is Intel(R) Core(TM) i7-5820K CPU @ 3.30GHz 3.30 GHz Ram 64GB
How frustrating, I'm sorry this is happening! Here is a link with troubleshooting steps, in case there are steps here you haven't tried yet. Something must be wrong with your installation. I hope there is something helpful here: https://community.adobe.com/t5/illustrator-discussions/resolve-slow-performance-and-unexpected-behav...
Thank you i reinstaled the creative cloud and i don't have the problem anymore