Mail is Slow and lagging.

Which might explain why Mail has worked flawlessly since I went to Ventura 13.0 last week.

And raises the question of why Apple does not put out an update to Monterrey 12 to delete this file.

I'm having exactly the same problem with Monterey v. 12.5. Problem is intermittent; sometimes leaving Mail app for another app and then returning to Mail solves the problem (for one or two Mail use times) but other times it doesn't. Very frustrating that Apple can't resolve this.

I have had this problem for update too. Apple Genius and IOS re-installs. No help. See attached from Google. This have any bearing on issue? Need Apple to determine if this is relevant. Tired of 'experimenting' on my own.

I have been having the same issues, especially since upgrading to Monterrey. The entire system is slower and I am losing time and money to the extent of 2-3 hours every day due to slow, painfully slow Mail. It is getting to the stage where after twenty years I am contemplating a move away from Apple altogether ...

Apple clearly has created a problem with Mail.

More and more people are reporting this issue, it is epidemic.

I have noticed another anomaly tied to this issue.

If I am focused on one email message and waiting for it to "appear" I can quit mail and instantly reopen mail and the message is there in full, graphics, everything. If I then scroll to the next message, it is blank. I repeat the process, close mail, reopen and viola there is the message in full.

This is insanity, what have they done?

It gets worse and worse - but whatever you do, don't ask Apple to resolve it! In the interim since I posted, I have spent several days, lost access to my entire account (I had two operating on my computer) and the second smaller account is even slower ... I have temporarily resorted to using Zoho Mail and pray each day that Apple will get this fixed:-))))

However, a few hours later, I had 10 more emails. The first few showed the messages, and the rest did not, and then even the first few disappeared. There was a 2-minute delay before all the messages showed.

So CMMX is not the answer to this problem.

I do not run antivirus on any of my computers, Mail is only acting like this on ONE of them, my iMac.

iPhone, no issues; MacBook Air, no issues and all systems are running current OS/IOS.

This issue is posted all over these forums and there have been no real answers or solutions offered. I called tech support and the agent scoffed at me stating that I had no issue because we could not recreate it in real time. Yet it is constant.

I hope someone figures out a solution, it is really annoying and time consuming....

I have Mail on an iMac and MacBook Air. Both have the problem, with the iMac being the slowest/worst.

Switching to another app while waiting does not help.

Like me coming here now:

I saw Openthread's complete message in Mail, and followed the link here to Safari here to start this reply.

Looked back at Mail, and his message field was gone.

Looking back at Mail now, a couple of minutes later, his message field has re-appeared.

Great comments from everyone and obviously a real problem - referring to the last message here, I cannot help remembering that the vast majority of these problems really became worse with the advent of Monterrey whatever changed in the priorities etc of the operating system.

This issue continues to get worse.

Now Mail does not display more frequently when Mail is open or just opened. If I switch to another program and come back to Mail there is no display of message previews for up to two minutes.

I have begun keeping a speedtest window open and can confirm there are ZERO connectivity issues, my up and down speeds continue to register well over 300mbps. Add to that, my iPhone connects instantly while sitting here at my desk, I think that indicates it is not a server level issue either.

There is no real rhyme or reason to what is going on here, does ANYone have any answers?

thanks,

gordon

Thanks for confirming Gordon - the problem is definitely Mail as it operates within MacOS Monterey - this is just begging for a solution before everyone just leaves to other mail management systems ... or maybe that is what Apple wants;-)

Another odd problem with Mail is the launch time. The Mail icon in the Dock does not bounce, but immediately shows the black dot indicating that the applications running. However, Mail does not appear in the Menu Bar, and when the cursor is moved over the Menu Bar, it becomes a spinning beach ball. It takes a couple of minutes for the Mail Viewer Window to appear, with its blank messages.

I use Spam Sieve, and have perhaps an unusually large number of Mail folders. If wonder if all this is slowing Mail.

Spam Sieve has been deactivating and reactivating itself lately, which I do not remember it always doing. And although I manage (empty) the Mail Inboxes several times a day, I do have over a hundred (countless) Mail folders and subfolders of saved messages, with some going back 20 years.

It's driving me crazy, not only does it take forever to download, but in order to read the emails, I often have to "forward" it just to see what's there until it takes its sweet time finally showing up. I've never had this problem until I bought a new Mac in 2020 or 2021

Problem persists. I upgraded to Montery 12.6 and the issue went away for 1 day, now it's back.

Also, I have CleanMyMac installed, OldToad asked this...I wonder if that is part of the problem. I will uninstall and check.