My Imac is very slow and unresponsive

Download and run Etrecheck. 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 use the Additional Text button to include the report in your reply.

IMPORTANT: ⬇︎ ⬇︎ ⬇︎

Before running Etrecheck assign Full Disk Access to Etrecheck in the Etrecheck's Privacy preference pane so that it can get additional information from the Console and log files for the report:

Also click and read the About info to further permit full disk access.

Then we can examine the report and see if we can determine what might be causing the problem.

Hello IsaacUniverse,

It sounds like your Mac is running slower since installing software.

Here's a resource on this topic: If your Mac runs slowly

• See more information about the Activity here: Monitor Activity Monitor User Guide

You can also perform some isolation steps with these resources:

• Test in safe mode Start up your Mac in safe mode
• Test in a new user account Set up users, guests, and groups on Mac

Hope this information helps.

Have a good day.