G Data Internet Security - memory usage

Yes, I did guess as much (I do have 80GB-Ram), still quite the amount.
You should try using less RAM in your VM and see if its RAM usage drops. Also, as long as you've plenty of free RAM and I presume you do with that much RAM, G Data's memory usage shouldn't really matter. On a system where G Data's usage RAM usage was causing your system to be low on RAM, that would be an issue.
 
Wow nice. How much RAM is on your system?
16 GB

Rn it's even lower

Screenshot 2023-04-29 184122.png