Welcome to the Apple Support Communities.
Mac computers do not need any sort of anti-virus, cleaners, VPNs, etc. The only thing they are good at is creating false marketing promises and taking consumers' money. In fact, anti-virus and other cleaners cause performance issues, security issues, and make macOS appear buggy. Your Mac is far worse with these types of Apps installed.
Uninstall the VPN App: How to uninstall apps on your Mac - Apple Support.
If you need a private internet service, learn about iCloud Private Relay: About iCloud Private Relay - Apple Support.
Jack