Hey, @THDp. Welcome to the Lightroom Community. I'll need more information to help you figure this out.
What troubleshooting steps have you tried already? Does Lightroom freeze or lag during specific tasks or operations?
Please share more details about your workflow and the system info from Lightroom. Go to Help > System info, copy and paste it into a text document, then upload and attach it here along with a few screenshots or a short video. At this point, the information I have is too limited to help you.
You can read through this report, which is related to Lightroom on macOS:
Thanks! Sameer K
(Type '@' and type my name to mention me when you reply)