Illustrator - Difficulty selecting and moving objects

Hi @Junglee88,

Thanks for reaching out. In addition to Steve's suggestion, I would recommend trying the steps in this community post (https://community.adobe.com/t5/illustrator-discussions/resolve-slow-performance-and-unexpected-behaviors-in-illustrator/td-p/11561981) and share your observation with us.

If nothing helps, would you mind sharing a few details along with the ones asked by Monika:

• Screenshot of "About this Mac"
• Mouse make & model you are using. Ignore if you are using the trackpad.

Also, is this happening in existing files or all?

We are here to help. We just need more info.

Thanks,

Anshul Saini

Did you also reboot the computer to clean up RAM?

How much RAM is installed?

What else is open?

Does it help working with a different input device?

If your issue is happening with more than one Illustrator file, I'd suggest restoring Illustrator preferences (this will restore all your Illustrator preferences, and you'll need to set them up again).

One way to do this is to go to Preferences > General  and click the Reset Preferences button at the bottom of the dialog. Click OK, and you'll be prompted to restart.