Major lag on timeline with Premiere Pro v 23.1 - macOS

@Mary Betsy  you can install the beta alongside the shipping version and the projects are compatible back and forth. The only trouble you could run into is if you use any of the beta features that are in development but  have not been shipped yet. If you stick to standard functionality that you were using in the shipping version, you will be fine. I agree that it's generally not recommended to edit mission critical projects in beta, but it's actually very solid. We've had major broadcasters and film productions edit in beta without issue. Still, I'd recommend making a backup of your project file and doing a test editing session for a little while. This all holds true for Productions as well. Please let me know how things go for you.

The public beta can be installed along side the current release.  Unless our Creative Cloud subscription is controlled by an administrator that has restricted access, it should be available via the Beta tab in Creative Cloud Desktop.

If the issue that you're experiencing is indeed that Sequences in the current version are not releasing RAM, you can also roll back a version.

I have not - since I'm not a Beta tester. Don't let me stop you.

I have nothing to add here - just another verification of some sort of problem I can't find a way to work around. I have a great experience for my first five minutes or so - and then the wheels start falling off with laggy everything. I have tried all the standard fixes from this forum and others, but there is a ghost in the machine right now that REALLY makes editing quickly difficult. Following this. I was way ahead on shows, so I decided to upgrade to the current CC and to Ventura... and oh boy - not good.

Thanks so much for the update about the Beta, @Francis-Crossman17221443! Appreciate the team working to get this fixed.

A couple questions:

• If I upgrade my current project to the Beta version, will I be able to easily transition to an upcoming version?
• If so, how would that be affected if further changes to the Beta are needed?
• And what about projects in a production?

I realize that editing current work in the Beta version is a risky move, but given that it sometimes took an hour for this bug to kick in, I'd love to invest that time on work I need to do anyway, if at all possible.

In any case, thanks again for the team's hard work on this.

We have a fix in hand!  The fix is in Premiere Pro beta version 23.3 build 22 which was made available just this morning.   In Creative Cloud Desktop, go to the Beta section and click "check for updates" – Beta info and FAQ   I encourage you to download the beta and let us know if it fixes the issue for you.

Finally, good to hear some official stuff about this. Thank you.

Good to hear there is a fix coming up @francis-crossman10980533 and thanks for informing us. I can assure you there are a lot of Windows-users having this problem as well (including me). It has been reported along this forum a lot. Don't know if it is exactly the same issue (I will leave that to the engineers 😉 ), but the similarity is striking.

Glad to hear the bug fix is in the works. Thank you!