Hi there,
Sorry about the trouble. Could you please a few more details like:
- OS and version of Illustrator
- Is this happening with a specific asset? If yes, could you please share this asset with us? You can share the download link. Steps are shared in this help article (https://helpx.adobe.com/in/creative-cloud/help/share.html).
- Share a small clip of your workflow.
- When did this start happening? Are there any recent changes made to your system? For example, any antivirus, system updates, or web extensions installed recently.
Also, I would suggest you to turn off GPU performance from preferences (cmd+k/ ctrl+k > GPU Performace > Uncheck GPU Performance. And see how it goes.
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Will be looking forward to your resp
Thanks & regards,
Anshul Saini