Samsung D8000 and Serviio 1.7

Upon further troubleshooting, I can conclusively say this is caused by enabling subtitle retrieval from OpenSubtitles.org. As soon as I disable this feature, the problem goes away. I would like to be able to download subtitles on the fly, though.

I have a Samsung D8000 TV and prior to upgrading to Serviio 1.7 I was not experiencing any issues. However, after upgrading to 1.7 when I browse through my server via Serviio, I am constantly either kicked back to the root navigation screen when I attempt to open a category or folder that contains more than 12 items or receive a message that there are no video files on the server. This doesn't happen when I use ServiiGo on my phone, nor does it happen if I use the MediaBrowser. I have noticed that there is a longer delay on both between the time that a new folder is opened and when the contents are listed. I do not see any relevant entries in Serviio.log (last entry is 6+ hours ago and related downloading cover art). Based on what I'm seeing, I'm guessing latency has increased somewhere, but I'm not sure why.

Server is https://19216801.onl/ https://routerlogin.uno/
Intel i7-860 w/8GB RAM
running OpenMediavault (Debian 7)
Java 1.8.0_101-b13

TV is connected via Wi-Fi

Configuration-wsie the only change has been the Serviio upgrade.

Any ideas?