having a few problems (slowness, beach ball spinning, temperamental connecting to wifi) since downloading navajo update but now the system wont...

Hello and welcome to ExpertHelp.com! My name is Rofel Lantican and I'm going to do everything in my power to answer your question to your full satisfaction!

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 Hi Richard,

Thanks for waiting. Im here to help. To verify your concern, the issue started after you try to download the 10.14 update is that correct?

Thanks for your response. Are you chatting with me on the same computer that you are having issues with?

Thanks for your response. Do you mind if we do a screen sharing (remote support) so that we can check the computer and  fix it?

Great. Before we proceed can you please verify if this is a good callback number incase we got disconnected ***-***-**** 2?

Dear richard, It was a pleasure helping you with your Apple issue today. Here is a summary of the resolution.

Issue identified : Mac Running slow after updating to Mojave

Solution Implemented : Called the customer / Remotely accessed the computer / We checked the computer and it shows that there are lots of running programs on the background / Assisted the customer to close or stop the applications / assisted the customer to clear the cache of the computer (Finder > Go > /Library/Cache > Delete the files) / mac is now running smoothly / Issue Resolved / Answer Accepted

If issue resurfaces : If issue resurfaces in next 30 days, come back to this Question page and let me know. If you are unable to find your way back to this Question page, please contact our customer support either by email (s**t@experthelp.com) OR call us at ***-***-**** .