Freezes MacBook Pro 13" 2017 macOS Ventura

I still see the Memory Cleaner app as a Login Item, but it is not currently loaded at the time you ran EtreCheck.

Try running Disk Utility First Aid on the hidden Container. Within Disk Utility you may need to click "View" and select "Show All Devices" so that the hidden Container appears on the left pane of Disk Utility. Even if First Aid says everything is "Ok", click "Show Details" and scroll through the report to see if any unfixed errors are listed. Unfixed file system errors can easily cause performance issues.

Try running the Apple Diagnostics to see if any hardware issues are detected.

Also, run DriveDx (free trial period) to check the health of the internal SSD. Post the complete DriveDx text report here using the "Additional Text" icon which looks like a piece of paper.

Disconnect all external devices in case one of them is causing a problem.

Do you have the issue even when the power adapter is connected to the laptop?

I don't see any issues in the SSD's health report.

We are not allowed to discuss beta products on these forums. Plus it is a bad idea to install beta updates unless directed by the manufacturer or developer of an app as they may include other new unknown issues.

FYI, I just realized there is another identical thread here by @vicelover:

mac OS Ventura slows down on MacBook Pro … - Apple Community

With that in mind I will no longer be responding in this thread since there is more activity on the other thread posted in the MacBook Pro forum. It is a waste of contributor resources having two identical threads since contributors may be repeating something in the other thread like I just did today regarding suggesting DriveDx in the other thread. Plus it gets very confusing. I will continue responding in the other thread as long as I have something to contribute.