After an update if you have any problems with the fingerprint reader just delete all stored prints and re-register. I had to repeat the process a few times but it works perfect now 👍
Update* ok so I just deleted and registered my fingerprints for like the 3rd time and now it's working fast again 👍
that's good to hear. I updated them when the beta came to S20 Ultra for Tmobile US and since then they've never been slow. If it does happen with the update, maybe a re-registration might fix it
I applied the update a few hours ago. So far so good. Fingerprint reader seems to be responding better. It was quite inconsistent for me and some other users on update #2.