Mac Computer Not Running Well - Did You Install An Antivirus

iMac Retina

If you are running a Mac computer and it is having issues and if you are running an antivirus , that maybe the cause.

Antivirus solutions on Macs can and do cause issues.

Uninstall the antivirus software and see if it fixes the issue. 

Remember Mac computers come with Gatekeeper which means that Non - Apple approved software will not be installed.