First there is no reason to ever install or run any 3rd party "cleaning", "optimizing", "speed-up", anti-virus, VPN or security apps on your Mac. This user tip describes what you need to know and do in order to protect your Mac: Effective defenses against malware and other threats - Apple Community
That being said you've installed what most of the experienced users here consider akin to malware, CleanMyMac and, from the same developer, Gemini 2.
Uninstall both according to the developer's instructions. You can check to see if you've removed all of the supporting files by downloading and running Find Any File to search for any files with the application's name and the developer's name in the file name. For the MacPaw software you'd do the following search(es):
1 - Name contains cleanmymac
2 - Name contains gemini
3 - Names contains macpaw
Any files that are found can be dragged from the search results window to the Desktop or Trash bin in the Dock for deletion.
FAF can search areas that Spotlight can't like invisible folders, system folders and packages.
Also Little Snitch could be interfering with the communication between your Mac and Apple TV. At the least it will slow system and application performance. To test it uninstall it completely and see if there's any improvement.
The Cisco VPN is reported as using a a lot of CPU resources. Unless you're using a true VPN tunnel, such as between you and your employer's or bank's servers, they are useless. Public VPN's are anything but private. If it's required for work then make sure you have the latest version.