Q: slow Imac with maverick

I have the same buffering of the beachball "color wheel icon"  iMac  OSX    10.9.5version

Ran Disk Utilities Permissions Repair....

"RESULTS

Repairing permissions for “name”Permissions differ on “System/Library/CoreServices/Feedback Assistant.app”; should be drwxr-xr-x ; they are lrwxr-xr-x .

Repaired “System/Library/CoreServices/Feedback Assistant.app

Permissions differ on “Applications/Safari.app/Contents/Resources/Safari.help/Contents/Resources/inde x.html”; should be lrwxr-xr-x ; they are -rwxr-xr-x .

Repaired “Applications/Safari.app/Contents/Resources/Safari.help/Contents/Resources/inde x.html

Warning: SUID file “System/Library/CoreServices/RemoteManagement/ARDAgent.app/Contents/MacOS/ARDAg ent” has been modified and will not be repaired.

End

SO now what? Keep running repair?

I have used MacKeeper program....Always seemed to help the last couple years..computer runs smoother / more quickly

Sluggish again....

Open Activity Monitor, Show:>All Processes, sort on CPU%, see if anything using too much CPU% when this happens, click on Memory tab, do you have many Pageouts?

Open Console in Applications>Utilities & see if there are any clues or repeating messages when this happens.

Click on the top line we want, Shift plus click on the bottom line we want, CMD+c to copy, then paste the text in a reply with CMD+v

A few dozen lines should be about right, hundreds or thousands won't likely be readable.

You can ignore rep[eated messages in Repair Permiisions, it's just the way it is.

I think MacKeeper is your problem.

MacKeeper – Do Not Install

MacKeeper – Do Not Install (2)        See  SDW2001’s post

MacKeeper Removal

MacKeeper Removal