Illustrator 30.0 lagging and still lags when i install earlier versions

terrible terrible lagging v 30.0, don't install it.

@defaultx7uiv2q46hvw oddly the lagging is affecting 30 and 29 now. When you uninstall 30.0, did you also use Adobe Cleaner too? The uninstaller did not remove corrupt settings files, which both versions 30.0 and 29 are now reading. I would uninstall both again then use Adobe Cleaner to fix common issues and removing outdated Adobe software, cleaning corrupt files, and repairing host files for Adobe server connectivity. When you see the message "Adobe Creative Cloud Cleaner Tool completed successfully," press Enter and restart your computer. 

Go back to Adobe.com or Creative Cloud and download a fresh download of Illustrator 2025, Version 29.0 (don't use the previous download of 29 or 30) as that may had corrupted preferences, and install the 29.0 Hopefully that should work. Unless version 28 (Illustrator 2024) was better for you?!