Opensubtitles.org subs lookup delay on Nvidia Shield TV Pro

Hi Team,

I see a fairly significant delay with looking up subs with the Opensubtitles.org Add-on, I hope you can help.

This is my equipment:
- KODI 18.7.2 (tried with some earlier versions too)
- Opensubtitles.org Add-on 5.0.16, configured with a registered username / password
- Nvidia Shield TV Pro 2019 (December 5 2019 patch level; 8.1 SW version - all the latest) with Android TV OS

This is what happens:
Whenever I navigate to the subtitle settings and click on "Download subtitle", there is an approx 30 seconds delay to find and list the available subtitles.
This did not happen on the previous box I have used (Minix U1 with Android 5.1.1). I have seen on some Nvidia forums that this is experienced by other Shield users too.

I wonder if this is an error with KODI for Andorid TV OS which could be fixed or if there is a workaround available?

Any help / idead would be much appreciated.

Thank you

Antal