Parallels / Windows is very slow and buggy after updating to Catalina

[MaximilianK]

Hey Forum,
i am experiencing a very slow and buggy performance of Windows using Parallels, after updating. my mac to Catalina. Before it was completely fine.
now it is very slow and buggy. I can't really figure out where this comes from. I am very bad in using windows, as i normally just use Mac. I just use the virtual Windows to run a Program that i can't get for mac.
Can someone help me?
Best
Max

 

[Maria@Parallels]

Hello,
please let us know which Parallels Desktop version you're using.

 

[MaximilianK]

It is Parallels. Desktop 13

 

[RigorM]

Parallels 12 - same problem after upgrading to Catalina.

 

[Maria@Parallels]

Guys, only the Parallels Desktop latest version (15) is fully compatible with macOS Catalina.
Could you please test the same behavior with trial Parallels Desktop 15 and let us know how does it work.