Chosen Solution

Model Name: iMac Model Identifier: iMac7,1 Processor Name: Intel Core 2 Duo Processor Speed: 2.4 GHz Suddenly very slow when browsing. ISP checked connection and it’s fine. Did the disk/permissions repair stuff. Still slow. Mac version 10.5.8 - software updated. How do I fix this?

Try seeeing just what your ISP speed is, it doesn’t matter who your carrier is: http://www.att.com/speedtest/ If you are using the airport, try switching to a hardwired ethernet connection to rule out an Airport card issue. If the problem persists, call your ISP and they will “painfully” walk you through everything to check. They can also reset your modem and test your lines. Most of the time when I have a slow down, it’s not me but them but they make you do every check before they do anything.

All Macs begin to slow down with age — MacBook Pro, iMac. It doesn’t matter. I’ve listed some of the reasons below that may cause the Mac to slow down and found several ways to make your Mac faster. You can try.

  1. Clean up your hard drive
  2. Update your macOS.
  3. Manage your Startup Items
  4. End processes with Activity Monitor
  5. Upgrade your hardware
  6. Use the Mac cleanup software. Such as Mac Cleaner of iMyMac
  7. Plow through your desktop items and Clean the desktop
  8. Remove extensions to make your Mac run faster
  9. Clean lots of outdated cache files
  10. Finder uses too much memory and Adjust Finder preferences 11.Animations and rich graphics are extremely resource-hungry. So cut down on animations
  11. Reset SMC to factory settings
  12. Too much temporary files in memory. So restart your Mac regularly
  13. Turn off the FileVault encryption 15.Over time, permission problems occur, causing your Mac OS X to lag, freeze and even crash. Then You can repair disk permissions.
  14. Clean up Downloads and Trash folders
  15. Clean up Preference Panes I hope the above method can help you.