Aggiornamento con sequoia

We need to know a lot more.

Start by telling us what your mac is, and what OS you upgraded from.

Often issues are due to third party software installed that is old, incompatible or just shouldn’t be used (like antivirus or “cleaners”).

In order to avoid a lot of questions back and forth: Please run Etrecheck and post its full report here.

Use the “additional text” button and paste the report into the text box.

EtreCheckPro is an excellent tool for finding and sorting out various problems.

Download and run the free version of EtreCheckPro, from > https://etrecheck.com/en/index.html

Then post back here with your Report, as per > How to use the Add Text Feature When Post… - Apple Community

As den.thed requested please download and run Etrecheck.  The free version is sufficient.

Copy and paste the results into your reply. Etrecheck is a diagnostic tool that was developed by one of the most respected users here in the ASC and recommended by Apple Support  to provide a snapshot of the system and help identify the more obvious culprits that can adversely affect a Mac's performance.

Copy the report

and after clicking on the Reply button use the Additional Text button to paste the report in your reply.

Check Etrecheck's Privacy settings and make sure the checkbox for full disk access before running:

Then we can examine the report and see if we can determine the cause of the problem.

Rino62 wrote:

Upgrading with Sequoia

I updated my Mac to the new Sequoia operating system, and since then it's been incredibly slow. Opening a file takes over half an hour. This is impossible. What should I do? Thanks.

Have you shut down and restarted more than once since your "upgrading/updated"...(?)

always recommended.

Welcome!

You have found the English-language version Apple’s user-to-user communities. If you can post in English, you will reach a far larger audience and get  faster help, with far less chance of our making a translation error.

Rino62 wrote:

Yes, I have turned it on and off several times but the slowness in opening pages is really discouraging,

—A SafeBoot Start up your Mac in safe mode - Apple Support will sort many anomalies

Login and test. Reboot  as normal and test.  Caches get rebuilt automatically.

This test will tell you if third party interference; most extensions etc are not loaded in safe boot mode. 

—Test issue in another user (or guest user) account Change Users & Groups settings on Mac - Apple Support

  This will tell you if it a universal issue or isolated to your user/admin account. 

***wireless keyboard with rechargeable batteries— connect the charging cable, this will make the wired keyboard successful Safe Boot your Mac. 

unplug all non-essential  peripherals when testing 

Uninstall all third party apps that are Cleaners/Optimizers/VPN/Anti-Virus

all known to cause issues on the macOS

It’s likely to be some third party launch agent that runs when you are logged in.

Test in Safe Mode. Now Safe Mode is typically slower than normal mode, but in this case we expect it will actually be faster.

Please run Etrecheck from your account and post the report here.