My playback is laggy
I have been using Final Cut Pro X forever and never had this problem. I have imported files from a GoPro and a Sony Alpha. I can scrub over the video and see it with no problems in the timeline. I can play the footage in the import window before it enters the timeline. However, as soon as I click play on the timeline it starts to lag. and the playback becomes no longer smooth. I have turned off background render but the problem is still happening. Can anyone help?
MacBook Pro 15″, macOS 12.5