Term recognition suddenly extremely slow after installing 2019 version

Hi all

I'm running Trados Freelance 2019 with Multiterm on a Windows 10 Professional machine with local storage.

Since installing the 2019 package and updating the service packs for Freelance and MultiTerm, the term recognition window near the top right is responding so slowly that it is reducing my productivity by nearly 50%. It sometimes takes 30 seconds or more for terms to show up. I have not changed anything else (no sudden increases in the size or number of termbases).

This is becoming a real problem. Can someone please help? I am not having similar issues with any other software on this device.

Thanks in advance.