Studio 2019 excruciatingly slow when working with TM servers


Ever since I upgraded from Studio 2017 to Studio 2019 it is taking me absolutely ages to work on projects linked to a client's TM Servers. Studio takes approximately 25 seconds to confirm a segment, open the next one and search the TM.... I've had this problem with multiple clients, so it's not one particular server that's the problem, and my Internet speed test is excellent so it's not my connection that's at fault either.

I'd be very grateful for any insight.