it just lag like this and I can't even shut it down

Which operating system do you have?

Does your system meet the min-requirements for Creative Cloud and Dreamweaver?

Check each one.
- https://helpx.adobe.com/creative-cloud/system-requirements.html
- https://helpx.adobe.com/dreamweaver/system-requirements.html

What troubleshooting steps have you tried so far?

Have you tried reinstalling it through the CC Desktop App yet?