Is it your "Next Up" row that is slowing it all down?
You say it winds up on "Play All" for awhile before moving to the correct episode. This too me would mean it is the Next Up having the performance issue. We can look into this and see what the times wind up.
You can also use this program below:
DB Browser for SQLite (DB4S) is a high quality, visual, open source tool to create, design, and edit database files compatible with SQLite.
Open your library.db from within Emby-Server/data/ and then choose "compact database" from the menu. It may look like the app hung or isn't responding while it does its thing. Just let it finish. After this it should load much faster. Try this and let me know what you think. Thanks.
You must stop Emby server before you can compact the library.db.
Edited by speechles, 15 January 2020 - 04:05 PM.